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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Deirdre Van Rensburg

Bib: 21926 •F •Age: N/A

CO

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
Race Day Weather
51°/41°F
overcast clouds
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  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
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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
24:35
3.11 mi
Rank: #16308
Start → 5K
24:35 | 7:55/mi
10K
49:47
6.21 mi
Rank: #17182 (-874)
5K → 10K
25:12 | 8:07/mi
15K
1:15:20
9.32 mi
Rank: #17659 (-477)
10K → 15K
25:33 | 8:14/mi
20K
1:41:43
12.43 mi
Rank: #18085 (-426)
15K → 20K
26:23 | 8:30/mi
HALF
1:47:23
13.11 mi
Rank: #18124 (-39)
20K → HALF
5:40 | 8:19/mi
25K
2:08:21
15.53 mi
Rank: #18328 (-204)
HALF → 25K
20:58 | 8:39/mi
30K
2:36:37
18.64 mi
Rank: #18631 (-303)
25K → 30K
28:16 | 9:06/mi
20M
2:49:26
20.00 mi
Rank: #18805 (-174)
30K → 20M
12:49 | 9:27/mi
21M
2:59:24
21.00 mi
Rank: #18936 (-131)
20M → 21M
9:58 | 9:58/mi
35K
3:06:12
21.75 mi
Rank: #18975 (-39)
21M → 35K
6:48 | 9:06/mi
23M
3:18:17
23.00 mi
Rank: #19161 (-186)
35K → 23M
12:05 | 9:40/mi
24M
3:27:39
24.00 mi
Rank: #19251 (-90)
23M → 24M
9:22 | 9:22/mi
40K
3:36:01
24.85 mi
Rank: #19398 (-147)
24M → 40K
8:22 | 9:48/mi
25.2M
3:39:39
25.20 mi
Rank: #19437 (-39)
40K → 25.2M
3:38 | 10:33/mi
FINISH
3:48:33
26.22 mi
Rank: #19435 (+2)
25.2M → FINISH
8:54 | 8:45/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:47:23
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time2:01:10
Pace9:15 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:4424:357:5524:35
7:55
-
10K
6.21 mi11:50:5649:478:0125:12
8:07
+0:12
15K
9.32 mi12:16:291:15:208:0525:33
8:14
+0:07
20K
12.43 mi12:42:521:41:438:1226:23
8:30
+0:16
HALF
13.11 mi12:48:321:47:238:125:40
8:19
-0:11
25K
15.53 mi13:09:302:08:218:1620:58
8:39
+0:20
30K
18.64 mi13:37:462:36:378:2528:16
9:06
+0:27
20M
20.00 mi13:50:352:49:268:2912:49
9:27
+0:21
21M
21.00 mi14:00:332:59:248:339:58
9:58
+0:31
35K
21.75 mi14:07:213:06:128:346:48
9:06
-0:52
23M
23.00 mi14:19:263:18:178:3812:05
9:40
+0:34
24M
24.00 mi14:28:483:27:398:409:22
9:22
-0:18
40K
24.85 mi14:37:103:36:018:428:22
9:48
+0:26
25.2M
25.20 mi14:40:483:39:398:433:38
10:33
+0:45
FINISH
26.22 mi14:49:423:48:338:448:54
8:45
-1:48

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

7:55 /mi

Average Pace

8:43 /mi

Slowest Pace

10:33 /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

2:08:21

56% of race

Time at Steady Pace

1:06:09

29% of race

Time at Slower Pace

34:03

15% of race

Average Pace: 8:43 /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 mi11:25:4424:357:5524:35
7:55
#16308
10K
6.21 mi11:50:5649:478:0125:12
8:07
#17182
15K
9.32 mi12:16:291:15:208:0525:33
8:14
#17659
20K
12.43 mi12:42:521:41:438:1226:23
8:30
#18085
HALF
13.11 mi12:48:321:47:238:125:40
8:19
#18124
25K
15.53 mi13:09:302:08:218:1620:58
8:39
#18328
30K
18.64 mi13:37:462:36:378:2528:16
9:06
#18631
20M
20.00 mi13:50:352:49:268:2912:49
9:27
#18805
21M
21.00 mi14:00:332:59:248:339:58
9:58
#18936
35K
21.75 mi14:07:213:06:128:346:48
9:06
#18975
23M
23.00 mi14:19:263:18:178:3812:05
9:40
#19161
24M
24.00 mi14:28:483:27:398:409:22
9:22
#19251
40K
24.85 mi14:37:103:36:018:428:22
9:48
#19398
25.2M
25.20 mi14:40:483:39:398:433:38
10:33
#19437
FINISH
26.22 mi14:49:423:48:338:448:54
8:45
#19435
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi163085511551118520(Top 64%)6775(Top 54%)6775(Top 379%)
10K6.21 mi3.10 mi17182-8746035-5246035-52418061(Top 62%)6520(Top 52%)6520(Top 365%)
15K9.32 mi3.11 mi17659-4776298-2636298-26318520(Top 64%)6775(Top 54%)6775(Top 379%)
20K12.43 mi3.11 mi18085-4266533-2356533-23519275(Top 66%)7231(Top 57%)7231(Top 405%)
HALF13.11 mi0.68 mi18124-396561-286561-2819165(Top 66%)7136(Top 57%)7136(Top 400%)
25K15.53 mi2.42 mi18328-2046687-1266687-12619448(Top 67%)7376(Top 59%)7376(Top 413%)
30K18.64 mi3.11 mi18631-3036896-2096896-20920062(Top 69%)7769(Top 62%)7769(Top 435%)
20M20.00 mi1.36 mi18805-1747011-1157011-11520835(Top 72%)8262(Top 66%)8262(Top 463%)
21M21.00 mi1.00 mi18936-1317104-937104-9320315(Top 70%)8019(Top 64%)8019(Top 449%)
35K21.75 mi0.75 mi18975-397142-387142-3820385(Top 70%)8127(Top 65%)8127(Top 455%)
23M23.00 mi1.25 mi19161-1867255-1137255-11321104(Top 73%)8519(Top 68%)8519(Top 477%)
24M24.00 mi1.00 mi19251-907333-787333-7820874(Top 72%)8476(Top 67%)8476(Top 475%)
40K24.85 mi0.85 mi19398-1477427-947427-9421329(Top 73%)8744(Top 70%)8744(Top 490%)
25.2M25.20 mi0.35 mi19437-397451-247451-2421180(Top 73%)8646(Top 69%)8646(Top 484%)
FINISH26.22 mi1.02 mi19435+27462-117462-1119351(Top 67%)7734(Top 61%)7734(Top 433%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21
+97ft-345ft

Overall

18520

Females

6775

F45-49

6775

5K→10K

3.1 - 6.2 mi

Top 62%
×5
+79ft-138ft

Overall

18061

Females

6520

F45-49

6520

10K→15K

6.2 - 9.3 mi

Top 64%
×3
+67ft-78ft

Overall

18520

Females

6775

F45-49

6775

15K→20K

9.3 - 12.4 mi

Top 66%
×5
+106ft-86ft

Overall

19275

Females

7231

F45-49

7231

20K→HALF

12.4 - 13.1 mi

Top 66%
×2
+19ft-37ft

Overall

19165

Females

7136

F45-49

7136

HALF→25K

13.1 - 15.5 mi

Top 67%
×4
+66ft-88ft

Overall

19448

Females

7376

F45-49

7376

25K→30K

15.5 - 18.6 mi

Top 69%
×9
+181ft-148ft

Overall

20062

Females

7769

F45-49

7769

30K→20M

18.6 - 20.0 mi

Top 72%
×5
+64ft-50ft

Overall

20835

Females

8262

F45-49

8262

20M→21M

20.0 - 21.0 mi

Top 70%
×8
+106ft-24ft

Overall

20315

Females

8019

F45-49

8019

21M→35K

21.0 - 21.8 mi

Top 70%
×7
+17ft-86ft

Overall

20385

Females

8127

F45-49

8127

35K→23M

21.8 - 23.0 mi

Top 73%
×5
+23ft-63ft

Overall

21104

Females

8519

F45-49

8519

23M→24M

23.0 - 24.0 mi

Top 72%
×6
+12ft-82ft

Overall

20874

Females

8476

F45-49

8476

24M→40K

24.0 - 24.9 mi

Top 73%
×1
+6ft-20ft

Overall

21329

Females

8744

F45-49

8744

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1
+13ft-16ft

Overall

21180

Females

8646

F45-49

8646

25.2M→FINISH

25.2 - 26.2 mi

Top 67%
×2
+22ft-21ft

Overall

19351

Females

7734

F45-49

7734

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
717
Passed By
2142
Net Change
-3127
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16308
5K → 10K56200-874#16308#17182
10K → 15K59200-477#17182#17659
15K → 20K75200-426#17659#18085
20K → HALF2160-39#18085#18124
HALF → 25K76200-204#18124#18328
25K → 30K101200-303#18328#18631
30K → 20M51200-174#18631#18805
20M → 21M48179-131#18805#18936
21M → 35K4483-39#18936#18975
35K → 23M40200-186#18975#19161
23M → 24M51141-90#19161#19251
24M → 40K27174-147#19251#19398
40K → 25.2M1352-39#19398#19437
25.2M → FINISH5553+2#19437#19435
TOTALS7172142-3127
📊

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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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