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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Leah Chohon

Bib: 14388 •F •Age: N/A

NE

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 34%
Gender (Female)
#0 / 12578
Top 18%
Age Group (F18-39)
#0 / 5716
Top 32%
Race Day Weather
51°/41°F
overcast clouds
Personalized for Leah

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 · 7:06/mi at mile 6.2

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Potential Focus Areas
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
22:16
3.11 mi
Rank: #9907
Start → 5K
22:16 | 7:11/mi
10K
44:19
6.21 mi
Rank: #9601 (+306)
5K → 10K
22:03 | 7:06/mi
15K
1:06:31
9.32 mi
Rank: #9572 (+29)
10K → 15K
22:12 | 7:09/mi
20K
1:28:59
12.43 mi
Rank: #9529 (+43)
15K → 20K
22:28 | 7:14/mi
HALF
1:33:50
13.11 mi
Rank: #9529
20K → HALF
4:51 | 7:07/mi
25K
1:51:28
15.53 mi
Rank: #9516 (+13)
HALF → 25K
17:38 | 7:17/mi
30K
2:15:12
18.64 mi
Rank: #9672 (-156)
25K → 30K
23:44 | 7:39/mi
20M
2:25:50
20.00 mi
Rank: #9771 (-99)
30K → 20M
10:38 | 7:50/mi
21M
2:33:54
21.00 mi
Rank: #9769 (+2)
20M → 21M
8:04 | 8:04/mi
35K
2:39:15
21.75 mi
Rank: #9677 (+92)
21M → 35K
5:21 | 7:10/mi
23M
2:48:59
23.00 mi
Rank: #9692 (-15)
35K → 23M
9:44 | 7:47/mi
24M
2:56:40
24.00 mi
Rank: #9754 (-62)
23M → 24M
7:41 | 7:41/mi
40K
3:03:25
24.85 mi
Rank: #9817 (-63)
24M → 40K
6:45 | 7:54/mi
25.2M
3:06:26
25.20 mi
Rank: #9880 (-63)
40K → 25.2M
3:01 | 8:45/mi
FINISH
3:14:11
26.22 mi
Rank: #9956 (-76)
25.2M → FINISH
7:45 | 7:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:33:50
Pace7:10 /mi
2nd Half
Distance13.11 mi
Time1:40:21
Pace7:40 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0422:167:1122:16
7:11
-
10K
6.21 mi11:14:0744:197:0822:03
7:06
-0:05
15K
9.32 mi11:36:191:06:317:0922:12
7:09
+0:03
20K
12.43 mi11:58:471:28:597:1022:28
7:14
+0:05
HALF
13.11 mi12:03:381:33:507:104:51
7:07
-0:07
25K
15.53 mi12:21:161:51:287:1117:38
7:17
+0:10
30K
18.64 mi12:45:002:15:127:1623:44
7:39
+0:22
20M
20.00 mi12:55:382:25:507:1810:38
7:50
+0:11
21M
21.00 mi13:03:422:33:547:208:04
8:04
+0:14
35K
21.75 mi13:09:032:39:157:205:21
7:10
-0:54
23M
23.00 mi13:18:472:48:597:219:44
7:47
+0:37
24M
24.00 mi13:26:282:56:407:227:41
7:41
-0:06
40K
24.85 mi13:33:133:03:257:236:45
7:54
+0:13
25.2M
25.20 mi13:36:143:06:267:243:01
8:45
+0:51
FINISH
26.22 mi13:43:593:14:117:257:45
7:37
-1:08

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

7:06 /mi

Average Pace

7:25 /mi

Slowest Pace

8:45 /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

1:56:49

60% of race

Time at Steady Pace

59:32

31% of race

Time at Slower Pace

17:50

9% of race

Average Pace: 7:24 /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 mi10:52:0422:167:1122:16
7:11
#9907
10K
6.21 mi11:14:0744:197:0822:03
7:06
#9601
15K
9.32 mi11:36:191:06:317:0922:12
7:09
#9572
20K
12.43 mi11:58:471:28:597:1022:28
7:14
#9529
HALF
13.11 mi12:03:381:33:507:104:51
7:07
#9529
25K
15.53 mi12:21:161:51:287:1117:38
7:17
#9516
30K
18.64 mi12:45:002:15:127:1623:44
7:39
#9672
20M
20.00 mi12:55:382:25:507:1810:38
7:50
#9771
21M
21.00 mi13:03:422:33:547:208:04
8:04
#9769
35K
21.75 mi13:09:032:39:157:205:21
7:10
#9677
23M
23.00 mi13:18:472:48:597:219:44
7:47
#9692
24M
24.00 mi13:26:282:56:407:227:41
7:41
#9754
40K
24.85 mi13:33:133:03:257:236:45
7:54
#9817
25.2M
25.20 mi13:36:143:06:267:243:01
8:45
#9880
FINISH
26.22 mi13:43:593:14:117:257:45
7:37
#9956
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9907184118419664(Top 33%)1780(Top 14%)1780(Top 31%)
10K6.21 mi3.10 mi9601+3061694+1471694+1479397(Top 32%)1633(Top 13%)1633(Top 29%)
15K9.32 mi3.11 mi9572+291697-31697-39664(Top 33%)1780(Top 14%)1780(Top 31%)
20K12.43 mi3.11 mi9529+431708-111708-119615(Top 33%)1860(Top 15%)1860(Top 33%)
HALF13.11 mi0.68 mi95291707+11707+19656(Top 33%)1829(Top 15%)1829(Top 32%)
25K15.53 mi2.42 mi9516+131736-291736-299488(Top 33%)1876(Top 15%)1876(Top 33%)
30K18.64 mi3.11 mi9672-1561875-1391875-13910756(Top 37%)2634(Top 21%)2634(Top 46%)
20M20.00 mi1.36 mi9771-991954-791954-7911558(Top 40%)3171(Top 25%)3171(Top 55%)
21M21.00 mi1.00 mi9769+21972-181972-1810361(Top 36%)2658(Top 21%)2658(Top 47%)
35K21.75 mi0.75 mi9677+921941+311941+318259(Top 28%)1685(Top 13%)1685(Top 29%)
23M23.00 mi1.25 mi9692-151982-411982-4110873(Top 37%)3034(Top 24%)3034(Top 53%)
24M24.00 mi1.00 mi9754-622030-482030-4811431(Top 39%)3395(Top 27%)3395(Top 59%)
40K24.85 mi0.85 mi9817-632093-632093-6311757(Top 41%)3638(Top 29%)3638(Top 64%)
25.2M25.20 mi0.35 mi9880-632142-492142-4913221(Top 46%)4453(Top 35%)4453(Top 78%)
FINISH26.22 mi1.02 mi9956-762210-682210-6812278(Top 42%)4007(Top 32%)4007(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21
+97ft-345ft

Overall

9664

Females

1780

F18-39

1780

5K→10K

3.1 - 6.2 mi

Top 32%
×5
+79ft-138ft

Overall

9397

Females

1633

F18-39

1633

10K→15K

6.2 - 9.3 mi

Top 33%
×3
+67ft-78ft

Overall

9664

Females

1780

F18-39

1780

15K→20K

9.3 - 12.4 mi

Top 33%
×5
+106ft-86ft

Overall

9615

Females

1860

F18-39

1860

20K→HALF

12.4 - 13.1 mi

Top 33%
×2
+19ft-37ft

Overall

9656

Females

1829

F18-39

1829

HALF→25K

13.1 - 15.5 mi

Top 33%
×4
+66ft-88ft

Overall

9488

Females

1876

F18-39

1876

25K→30K

15.5 - 18.6 mi

Top 37%
×9
+181ft-148ft

Overall

10756

Females

2634

F18-39

2634

30K→20M

18.6 - 20.0 mi

Top 40%
×5
+64ft-50ft

Overall

11558

Females

3171

F18-39

3171

20M→21M

20.0 - 21.0 mi

Top 36%
×8
+106ft-24ft

Overall

10361

Females

2658

F18-39

2658

21M→35K

21.0 - 21.8 mi

Top 28%
×7
+17ft-86ft

Overall

8259

Females

1685

F18-39

1685

35K→23M

21.8 - 23.0 mi

Top 37%
×5
+23ft-63ft

Overall

10873

Females

3034

F18-39

3034

23M→24M

23.0 - 24.0 mi

Top 39%
×6
+12ft-82ft

Overall

11431

Females

3395

F18-39

3395

24M→40K

24.0 - 24.9 mi

Top 41%
×1
+6ft-20ft

Overall

11757

Females

3638

F18-39

3638

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1
+13ft-16ft

Overall

13221

Females

4453

F18-39

4453

25.2M→FINISH

25.2 - 26.2 mi

Top 42%
×2
+22ft-21ft

Overall

12278

Females

4007

F18-39

4007

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1542*
Passed By
1504
Net Change
-49
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9907
5K → 10K430*124+306#9907#9601
10K → 15K170140+29#9601#9572
15K → 20K164121+43#9572#9529
20K → HALF24240#9529#9529
HALF → 25K117104+13#9529#9516
25K → 30K129200-156#9516#9672
30K → 20M54153-99#9672#9771
20M → 21M7876+2#9771#9769
21M → 35K1008+92#9769#9677
35K → 23M101116-15#9677#9692
23M → 24M56118-62#9692#9754
24M → 40K51114-63#9754#9817
40K → 25.2M1679-63#9817#9880
25.2M → FINISH52127-76#9880#9956
TOTALS1542*1504-49

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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