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BOSTON MARATHON 2026

Jennifer Cho

Bib: 13516•F

NJ

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 27%
Gender (Female)
#0 / 12578
Top 10%
Masters (Masters Women)
#0 / 6862
Top 3%
Age Group (F45-49)
#0 / 1786
Top 3%
Race Day Weather
51°/41°F
overcast clouds

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
22:25
3.11 mi
Rank: #10297
Start → 5K
22:25 | 7:13/mi
10K
44:12
6.21 mi
Rank: #9427 (+870)
5K → 10K
21:47 | 7:01/mi
15K
1:06:19
9.32 mi
Rank: #9391 (+36)
10K → 15K
22:07 | 7:08/mi
20K
1:28:41
12.43 mi
Rank: #9370 (+21)
15K → 20K
22:22 | 7:12/mi
HALF
1:33:28
13.11 mi
Rank: #9328 (+42)
20K → HALF
4:47 | 7:02/mi
25K
1:51:12
15.53 mi
Rank: #9360 (-32)
HALF → 25K
17:44 | 7:19/mi
30K
2:13:55
18.64 mi
Rank: #9108 (+252)
25K → 30K
22:43 | 7:19/mi
20M
2:23:55
20.00 mi
Rank: #8987 (+121)
30K → 20M
10:00 | 7:22/mi
21M
2:31:30
21.00 mi
Rank: #8845 (+142)
20M → 21M
7:35 | 7:35/mi
35K
2:36:41
21.75 mi
Rank: #8707 (+138)
21M → 35K
5:11 | 6:56/mi
23M
2:45:35
23.00 mi
Rank: #8502 (+205)
35K → 23M
8:54 | 7:07/mi
24M
2:52:23
24.00 mi
Rank: #8298 (+204)
23M → 24M
6:48 | 6:48/mi
40K
2:58:15
24.85 mi
Rank: #8126 (+172)
24M → 40K
5:52 | 6:52/mi
25.2M
3:00:47
25.20 mi
Rank: #8026 (+100)
40K → 25.2M
2:32 | 7:21/mi
FINISH
3:07:30
26.22 mi
Rank: #7846 (+180)
25.2M → FINISH
6:43 | 6:36/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:33:28
Pace7:08 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:34:02
Pace7:11 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1322:257:1322:25
7:13
-
10K
6.21 mi11:14:0044:127:0721:47
7:01
-0:12
15K
9.32 mi11:36:071:06:197:0722:07
7:08
+0:07
20K
12.43 mi11:58:291:28:417:0922:22
7:12
+0:04
HALF
13.11 mi12:03:161:33:287:084:47
7:02
-0:10
25K
15.53 mi12:20:591:51:127:1017:44
7:19
+0:17
30K
18.64 mi12:43:432:13:557:1222:43
7:19
0:00
20M
20.00 mi12:53:432:23:557:1210:00
7:22
+0:03
21M
21.00 mi13:01:182:31:307:137:35
7:35
+0:13
35K
21.75 mi13:06:292:36:417:135:11
6:56
-0:39
23M
23.00 mi13:15:232:45:357:128:54
7:07
+0:11
24M
24.00 mi13:22:112:52:237:116:48
6:48
-0:19
40K
24.85 mi13:28:032:58:157:115:52
6:52
+0:04
25.2M
25.20 mi13:30:353:00:477:112:32
7:21
+0:29
FINISH
26.22 mi13:37:183:07:307:106:43
6:36
-0:45

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

6:36 /mi

Average Pace

7:09 /mi

Slowest Pace

7:35 /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

2:06:56

68% of race

Time at Steady Pace

1:00:34

32% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:09 /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 mi10:52:1322:257:1322:25
7:13
#10297
10K
6.21 mi11:14:0044:127:0721:47
7:01
#9427
15K
9.32 mi11:36:071:06:197:0722:07
7:08
#9391
20K
12.43 mi11:58:291:28:417:0922:22
7:12
#9370
HALF
13.11 mi12:03:161:33:287:084:47
7:02
#9328
25K
15.53 mi12:20:591:51:127:1017:44
7:19
#9360
30K
18.64 mi12:43:432:13:557:1222:43
7:19
#9108
20M
20.00 mi12:53:432:23:557:1210:00
7:22
#8987
21M
21.00 mi13:01:182:31:307:137:35
7:35
#8845
35K
21.75 mi13:06:292:36:417:135:11
6:56
#8707
23M
23.00 mi13:15:232:45:357:128:54
7:07
#8502
24M
24.00 mi13:22:112:52:237:116:48
6:48
#8298
40K
24.85 mi13:28:032:58:157:115:52
6:52
#8126
25.2M
25.20 mi13:30:353:00:477:112:32
7:21
#8026
FINISH
26.22 mi13:37:183:07:307:106:43
6:36
#7846
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

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 mi10297203020309414(Top 32%)1670(Top 13%)1670(Top 94%)
10K6.21 mi3.10 mi9427+8701611+4191611+4198750(Top 30%)1379(Top 11%)1379(Top 77%)
15K9.32 mi3.11 mi9391+361622-111622-119414(Top 32%)1670(Top 13%)1670(Top 94%)
20K12.43 mi3.11 mi9370+211637-151637-159317(Top 32%)1720(Top 14%)1720(Top 96%)
HALF13.11 mi0.68 mi9328+421624+131624+138710(Top 30%)1396(Top 11%)1396(Top 78%)
25K15.53 mi2.42 mi9360-321669-451669-459793(Top 34%)2028(Top 16%)2028(Top 114%)
30K18.64 mi3.11 mi9108+2521599+701599+708211(Top 28%)1471(Top 12%)1471(Top 82%)
20M20.00 mi1.36 mi8987+1211573+261573+268087(Top 28%)1527(Top 12%)1527(Top 85%)
21M21.00 mi1.00 mi8845+1421545+281545+286979(Top 24%)1208(Top 10%)1208(Top 68%)
35K21.75 mi0.75 mi8707+1381512+331512+336522(Top 22%)1012(Top 8%)1012(Top 57%)
23M23.00 mi1.25 mi8502+2051455+571455+576170(Top 21%)948(Top 8%)948(Top 53%)
24M24.00 mi1.00 mi8298+2041397+581397+585062(Top 17%)677(Top 5%)677(Top 38%)
40K24.85 mi0.85 mi8126+1721348+491348+494536(Top 16%)595(Top 5%)595(Top 33%)
25.2M25.20 mi0.35 mi8026+1001321+271321+274240(Top 15%)596(Top 5%)596(Top 33%)
FINISH26.22 mi1.02 mi7846+1801273+481273+484676(Top 16%)708(Top 6%)708(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21
+97ft-345ft

Overall

9414

Females

1670

F45-49

1670

5K→10K

3.1 - 6.2 mi

Top 30%
×5
+79ft-138ft

Overall

8750

Females

1379

F45-49

1379

10K→15K

6.2 - 9.3 mi

Top 32%
×3
+67ft-78ft

Overall

9414

Females

1670

F45-49

1670

15K→20K

9.3 - 12.4 mi

Top 32%
×5
+106ft-86ft

Overall

9317

Females

1720

F45-49

1720

20K→HALF

12.4 - 13.1 mi

Top 30%
×2
+19ft-37ft

Overall

8710

Females

1396

F45-49

1396

HALF→25K

13.1 - 15.5 mi

Top 34%
×4
+66ft-88ft

Overall

9793

Females

2028

F45-49

2028

25K→30K

15.5 - 18.6 mi

Top 28%
×9
+181ft-148ft

Overall

8211

Females

1471

F45-49

1471

30K→20M

18.6 - 20.0 mi

Top 28%
×5
+64ft-50ft

Overall

8087

Females

1527

F45-49

1527

20M→21M

20.0 - 21.0 mi

Top 24%
×8
+106ft-24ft

Overall

6979

Females

1208

F45-49

1208

21M→35K

21.0 - 21.8 mi

Top 22%
×7
+17ft-86ft

Overall

6522

Females

1012

F45-49

1012

35K→23M

21.8 - 23.0 mi

Top 21%
×5
+23ft-63ft

Overall

6170

Females

948

F45-49

948

23M→24M

23.0 - 24.0 mi

Top 17%
×6
+12ft-82ft

Overall

5062

Females

677

F45-49

677

24M→40K

24.0 - 24.9 mi

Top 16%
×1
+6ft-20ft

Overall

4536

Females

595

F45-49

595

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1
+13ft-16ft

Overall

4240

Females

596

F45-49

596

25.2M→FINISH

25.2 - 26.2 mi

Top 16%
×2
+22ft-21ft

Overall

4676

Females

708

F45-49

708

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3007*
Passed By
555
Net Change
+2451
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10297
5K → 10K904*34+870#10297#9427
10K → 15K161124+36#9427#9391
15K → 20K153132+21#9391#9370
20K → HALF486+42#9370#9328
HALF → 25K105137-32#9328#9360
25K → 30K30553+252#9360#9108
30K → 20M14423+121#9108#8987
20M → 21M16018+142#8987#8845
21M → 35K1424+138#8845#8707
35K → 23M2138+205#8707#8502
23M → 24M2117+204#8502#8298
24M → 40K1731+172#8298#8126
40K → 25.2M1011+100#8126#8026
25.2M → FINISH1877+180#8026#7846
TOTALS3007*555+2451

* 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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing