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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Jolanda Oosterom

Bib: 31628 •F •Age: N/A

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F55-59)
#0 / 951
Race Day Weather
51°/41°F
overcast clouds
Personalized for Jolanda

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 10:09/mi at mile 3.1

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Improvement Opportunities
One-time purchase · Instant access · Downloadable PDF · Shareable report

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
31:32
3.11 mi
Rank: #26367
Start → 5K
31:32 | 10:09/mi
10K
1:08:14
6.21 mi
Rank: #27862 (-1495)
5K → 10K
36:42 | 11:49/mi
15K
1:45:41
9.32 mi
Rank: #28111 (-249)
10K → 15K
37:27 | 12:04/mi
20K
2:25:32
12.43 mi
Rank: #28284 (-173)
15K → 20K
39:51 | 12:50/mi
HALF
2:33:52
13.11 mi
Rank: #28295 (-11)
20K → HALF
8:20 | 12:14/mi
25K
3:07:34
15.53 mi
Rank: #28392 (-97)
HALF → 25K
33:42 | 13:54/mi
30K
3:54:45
18.64 mi
Rank: #28530 (-138)
25K → 30K
47:11 | 15:12/mi
20M
4:17:06
20.00 mi
Rank: #28616 (-86)
30K → 20M
22:21 | 16:28/mi
21M
4:33:19
21.00 mi
Rank: #28629 (-13)
20M → 21M
16:13 | 16:13/mi
35K
4:43:50
21.75 mi
Rank: #28636 (-7)
21M → 35K
10:31 | 14:04/mi
23M
5:02:34
23.00 mi
Rank: #28658 (-22)
35K → 23M
18:44 | 14:59/mi
24M
5:15:24
24.00 mi
Rank: #28632 (+26)
23M → 24M
12:50 | 12:50/mi
40K
5:28:16
24.85 mi
Rank: #28641 (-9)
24M → 40K
12:52 | 15:03/mi
25.2M
5:33:44
25.20 mi
Rank: #28644 (-3)
40K → 25.2M
5:28 | 15:52/mi
FINISH
5:47:05
26.22 mi
Rank: #28638 (+6)
25.2M → FINISH
13:21 | 13:07/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:33:52
Pace11:45 /mi
2nd Half
Distance13.11 mi
Time3:13:13
Pace14:45 /mi
📊Positive Split: 25.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:00:5531:3210:0931:32
10:09
-
10K
6.21 mi12:37:371:08:1410:5936:42
11:49
+1:40
15K
9.32 mi13:15:041:45:4111:2137:27
12:04
+0:15
20K
12.43 mi13:54:552:25:3211:4339:51
12:50
+0:46
HALF
13.11 mi14:03:152:33:5211:458:20
12:14
-0:36
25K
15.53 mi14:36:573:07:3412:0533:42
13:54
+1:40
30K
18.64 mi15:24:083:54:4512:3647:11
15:12
+1:18
20M
20.00 mi15:46:294:17:0612:5222:21
16:28
+1:16
21M
21.00 mi16:02:424:33:1913:0116:13
16:13
-0:15
35K
21.75 mi16:13:134:43:5013:0410:31
14:04
-2:09
23M
23.00 mi16:31:575:02:3413:1018:44
14:59
+0:55
24M
24.00 mi16:44:475:15:2413:0912:50
12:50
-2:09
40K
24.85 mi16:57:395:28:1613:1312:52
15:03
+2:13
25.2M
25.20 mi17:03:075:33:4413:155:28
15:52
+0:49
FINISH
26.22 mi17:16:285:47:0513:1513:21
13:07
-2:45

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

10:09 /mi

Average Pace

13:15 /mi

Slowest Pace

16:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:46:42

48% of race

Time at Steady Pace

57:34

17% of race

Time at Slower Pace

2:02:49

35% of race

Average Pace: 13:14 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi12:00:5531:3210:0931:32
10:09
#26367
10K
6.21 mi12:37:371:08:1410:5936:42
11:49
#27862
15K
9.32 mi13:15:041:45:4111:2137:27
12:04
#28111
20K
12.43 mi13:54:552:25:3211:4339:51
12:50
#28284
HALF
13.11 mi14:03:152:33:5211:458:20
12:14
#28295
25K
15.53 mi14:36:573:07:3412:0533:42
13:54
#28392
30K
18.64 mi15:24:083:54:4512:3647:11
15:12
#28530
20M
20.00 mi15:46:294:17:0612:5222:21
16:28
#28616
21M
21.00 mi16:02:424:33:1913:0116:13
16:13
#28629
35K
21.75 mi16:13:134:43:5013:0410:31
14:04
#28636
23M
23.00 mi16:31:575:02:3413:1018:44
14:59
#28658
24M
24.00 mi16:44:475:15:2413:0912:50
12:50
#28632
40K
24.85 mi16:57:395:28:1613:1312:52
15:03
#28641
25.2M
25.20 mi17:03:075:33:4413:155:28
15:52
#28644
FINISH
26.22 mi17:16:285:47:0513:1513:21
13:07
#28638
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi26367109021090228396(Top 98%)12173(Top 97%)12173(Top 1280%)
10K6.21 mi3.10 mi27862-149511803-90111803-90128471(Top 98%)12209(Top 97%)12209(Top 1284%)
15K9.32 mi3.11 mi28111-24911960-15711960-15728396(Top 98%)12173(Top 97%)12173(Top 1280%)
20K12.43 mi3.11 mi28284-17312081-12112081-12128541(Top 98%)12277(Top 98%)12277(Top 1291%)
HALF13.11 mi0.68 mi28295-1112092-1112092-1128379(Top 98%)12191(Top 97%)12191(Top 1282%)
25K15.53 mi2.42 mi28392-9712157-6512157-6528654(Top 99%)12366(Top 98%)12366(Top 1300%)
30K18.64 mi3.11 mi28530-13812260-10312260-10328820(Top 99%)12481(Top 99%)12481(Top 1312%)
20M20.00 mi1.36 mi28616-8612319-5912319-5928887(Top 100%)12506(Top 99%)12506(Top 1315%)
21M21.00 mi1.00 mi28629-1312328-912328-928666(Top 99%)12415(Top 99%)12415(Top 1305%)
35K21.75 mi0.75 mi28636-712334-612334-628380(Top 98%)12290(Top 98%)12290(Top 1292%)
23M23.00 mi1.25 mi28658-2212352-1812352-1828628(Top 99%)12413(Top 99%)12413(Top 1305%)
24M24.00 mi1.00 mi28632+2612336+1612336+1627516(Top 95%)11877(Top 94%)11877(Top 1249%)
40K24.85 mi0.85 mi28641-912346-1012346-1028475(Top 98%)12356(Top 98%)12356(Top 1299%)
25.2M25.20 mi0.35 mi28644-312348-212348-228395(Top 98%)12334(Top 98%)12334(Top 1297%)
FINISH26.22 mi1.02 mi28638+612350-212350-228274(Top 97%)12253(Top 97%)12253(Top 1288%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21
+97ft-345ft

Overall

28396

Females

12173

F55-59

12173

5K→10K

3.1 - 6.2 mi

Top 98%
×5
+79ft-138ft

Overall

28471

Females

12209

F55-59

12209

10K→15K

6.2 - 9.3 mi

Top 98%
×3
+67ft-78ft

Overall

28396

Females

12173

F55-59

12173

15K→20K

9.3 - 12.4 mi

Top 98%
×5
+106ft-86ft

Overall

28541

Females

12277

F55-59

12277

20K→HALF

12.4 - 13.1 mi

Top 98%
×2
+19ft-37ft

Overall

28379

Females

12191

F55-59

12191

HALF→25K

13.1 - 15.5 mi

Top 99%
×4
+66ft-88ft

Overall

28654

Females

12366

F55-59

12366

25K→30K

15.5 - 18.6 mi

Top 99%
×9
+181ft-148ft

Overall

28820

Females

12481

F55-59

12481

30K→20M

18.6 - 20.0 mi

Top 100%
×5
+64ft-50ft

Overall

28887

Females

12506

F55-59

12506

20M→21M

20.0 - 21.0 mi

Top 99%
×8
+106ft-24ft

Overall

28666

Females

12415

F55-59

12415

21M→35K

21.0 - 21.8 mi

Top 98%
×7
+17ft-86ft

Overall

28380

Females

12290

F55-59

12290

35K→23M

21.8 - 23.0 mi

Top 99%
×5
+23ft-63ft

Overall

28628

Females

12413

F55-59

12413

23M→24M

23.0 - 24.0 mi

Top 95%
×6
+12ft-82ft

Overall

27516

Females

11877

F55-59

11877

24M→40K

24.0 - 24.9 mi

Top 98%
×1
+6ft-20ft

Overall

28475

Females

12356

F55-59

12356

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1
+13ft-16ft

Overall

28395

Females

12334

F55-59

12334

25.2M→FINISH

25.2 - 26.2 mi

Top 97%
×2
+22ft-21ft

Overall

28274

Females

12253

F55-59

12253

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
168
Passed By
1063
Net Change
-2271
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26367
5K → 10K3200-1495#26367#27862
10K → 15K29200-249#27862#28111
15K → 20K20193-173#28111#28284
20K → HALF1122-11#28284#28295
HALF → 25K15112-97#28295#28392
25K → 30K10148-138#28392#28530
30K → 20M490-86#28530#28616
20M → 21M720-13#28616#28629
21M → 35K1017-7#28629#28636
35K → 23M729-22#28636#28658
23M → 24M271+26#28658#28632
24M → 40K615-9#28632#28641
40K → 25.2M36-3#28641#28644
25.2M → FINISH1610+6#28644#28638
TOTALS1681063-2271
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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