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BOSTON MARATHON 2026

Chelsea Mulkerin

Bib: 29024•F

GA

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
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
27:15
3.11 mi
Rank: #21559
Start → 5K
27:15 | 8:47/mi
10K
54:36
6.21 mi
Rank: #21773 (-214)
5K → 10K
27:21 | 8:49/mi
15K
1:22:32
9.32 mi
Rank: #22033 (-260)
10K → 15K
27:56 | 9:00/mi
20K
1:51:58
12.43 mi
Rank: #22533 (-500)
15K → 20K
29:26 | 9:29/mi
HALF
1:58:42
13.11 mi
Rank: #22747 (-214)
20K → HALF
6:44 | 9:53/mi
25K
2:21:23
15.53 mi
Rank: #22718 (+29)
HALF → 25K
22:41 | 9:22/mi
30K
2:52:29
18.64 mi
Rank: #22830 (-112)
25K → 30K
31:06 | 10:01/mi
20M
3:05:57
20.00 mi
Rank: #22769 (+61)
30K → 20M
13:28 | 9:55/mi
21M
3:16:13
21.00 mi
Rank: #22668 (+101)
20M → 21M
10:16 | 10:16/mi
35K
3:23:04
21.75 mi
Rank: #22598 (+70)
21M → 35K
6:51 | 9:10/mi
23M
3:35:17
23.00 mi
Rank: #22511 (+87)
35K → 23M
12:13 | 9:46/mi
24M
3:45:01
24.00 mi
Rank: #22494 (+17)
23M → 24M
9:44 | 9:44/mi
40K
3:53:09
24.85 mi
Rank: #22407 (+87)
24M → 40K
8:08 | 9:31/mi
25.2M
3:56:40
25.20 mi
Rank: #22364 (+43)
40K → 25.2M
3:31 | 10:12/mi
FINISH
4:06:07
26.22 mi
Rank: #22330 (+34)
25.2M → FINISH
9:27 | 9:17/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:58:42
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:07:25
Pace9:44 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:3727:158:4727:15
8:47
-
10K
6.21 mi12:17:5854:368:4827:21
8:49
+0:02
15K
9.32 mi12:45:541:22:328:5227:56
9:00
+0:11
20K
12.43 mi13:15:201:51:589:0129:26
9:29
+0:29
HALF
13.11 mi13:22:041:58:429:046:44
9:53
+0:24
25K
15.53 mi13:44:452:21:239:0722:41
9:22
-0:31
30K
18.64 mi14:15:512:52:299:1631:06
10:01
+0:39
20M
20.00 mi14:29:193:05:579:1813:28
9:55
-0:06
21M
21.00 mi14:39:353:16:139:2110:16
10:16
+0:21
35K
21.75 mi14:46:263:23:049:216:51
9:10
-1:06
23M
23.00 mi14:58:393:35:179:2212:13
9:46
+0:36
24M
24.00 mi15:08:233:45:019:239:44
9:44
-0:02
40K
24.85 mi15:16:313:53:099:238:08
9:31
-0:13
25.2M
25.20 mi15:20:023:56:409:243:31
10:12
+0:41
FINISH
26.22 mi15:29:294:06:079:249:27
9:17
-0:55

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

8:47 /mi

Average Pace

9:24 /mi

Slowest Pace

10:16 /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

2:39:05

65% of race

Time at Steady Pace

1:27:02

35% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:23 /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 mi11:50:3727:158:4727:15
8:47
#21559
10K
6.21 mi12:17:5854:368:4827:21
8:49
#21773
15K
9.32 mi12:45:541:22:328:5227:56
9:00
#22033
20K
12.43 mi13:15:201:51:589:0129:26
9:29
#22533
HALF
13.11 mi13:22:041:58:429:046:44
9:53
#22747
25K
15.53 mi13:44:452:21:239:0722:41
9:22
#22718
30K
18.64 mi14:15:512:52:299:1631:06
10:01
#22830
20M
20.00 mi14:29:193:05:579:1813:28
9:55
#22769
21M
21.00 mi14:39:353:16:139:2110:16
10:16
#22668
35K
21.75 mi14:46:263:23:049:216:51
9:10
#22598
23M
23.00 mi14:58:393:35:179:2212:13
9:46
#22511
24M
24.00 mi15:08:233:45:019:239:44
9:44
#22494
40K
24.85 mi15:16:313:53:099:238:08
9:31
#22407
25.2M
25.20 mi15:20:023:56:409:243:31
10:12
#22364
FINISH
26.22 mi15:29:294:06:079:249:27
9:17
#22330
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 mi215598475847522662(Top 78%)8955(Top 71%)8955(Top 157%)
10K6.21 mi3.10 mi21773-2148560-858560-8521927(Top 76%)8614(Top 68%)8614(Top 151%)
15K9.32 mi3.11 mi22033-2608678-1188678-11822662(Top 78%)8955(Top 71%)8955(Top 157%)
20K12.43 mi3.11 mi22533-5008917-2398917-23923683(Top 82%)9532(Top 76%)9532(Top 167%)
HALF13.11 mi0.68 mi22747-2149020-1039020-10325369(Top 87%)10406(Top 83%)10406(Top 182%)
25K15.53 mi2.42 mi22718+299024-49024-422564(Top 78%)8965(Top 71%)8965(Top 157%)
30K18.64 mi3.11 mi22830-1129111-879111-8723162(Top 80%)9373(Top 75%)9373(Top 164%)
20M20.00 mi1.36 mi22769+619100+119100+1122342(Top 77%)9032(Top 72%)9032(Top 158%)
21M21.00 mi1.00 mi22668+1019065+359065+3521298(Top 73%)8533(Top 68%)8533(Top 149%)
35K21.75 mi0.75 mi22598+709037+289037+2820682(Top 71%)8286(Top 66%)8286(Top 145%)
23M23.00 mi1.25 mi22511+879008+299008+2921456(Top 74%)8718(Top 69%)8718(Top 153%)
24M24.00 mi1.00 mi22494+179018-109018-1022069(Top 76%)9076(Top 72%)9076(Top 159%)
40K24.85 mi0.85 mi22407+878983+358983+3520468(Top 71%)8316(Top 66%)8316(Top 145%)
25.2M25.20 mi0.35 mi22364+438965+188965+1820164(Top 69%)8160(Top 65%)8160(Top 143%)
FINISH26.22 mi1.02 mi22330+348963+28963+221568(Top 74%)8849(Top 70%)8849(Top 155%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21
+97ft-345ft

Overall

22662

Females

8955

F18-39

8955

5K→10K

3.1 - 6.2 mi

Top 76%
×5
+79ft-138ft

Overall

21927

Females

8614

F18-39

8614

10K→15K

6.2 - 9.3 mi

Top 78%
×3
+67ft-78ft

Overall

22662

Females

8955

F18-39

8955

15K→20K

9.3 - 12.4 mi

Top 82%
×5
+106ft-86ft

Overall

23683

Females

9532

F18-39

9532

20K→HALF

12.4 - 13.1 mi

Top 87%
×2
+19ft-37ft

Overall

25369

Females

10406

F18-39

10406

HALF→25K

13.1 - 15.5 mi

Top 78%
×4
+66ft-88ft

Overall

22564

Females

8965

F18-39

8965

25K→30K

15.5 - 18.6 mi

Top 80%
×9
+181ft-148ft

Overall

23162

Females

9373

F18-39

9373

30K→20M

18.6 - 20.0 mi

Top 77%
×5
+64ft-50ft

Overall

22342

Females

9032

F18-39

9032

20M→21M

20.0 - 21.0 mi

Top 73%
×8
+106ft-24ft

Overall

21298

Females

8533

F18-39

8533

21M→35K

21.0 - 21.8 mi

Top 71%
×7
+17ft-86ft

Overall

20682

Females

8286

F18-39

8286

35K→23M

21.8 - 23.0 mi

Top 74%
×5
+23ft-63ft

Overall

21456

Females

8718

F18-39

8718

23M→24M

23.0 - 24.0 mi

Top 76%
×6
+12ft-82ft

Overall

22069

Females

9076

F18-39

9076

24M→40K

24.0 - 24.9 mi

Top 71%
×1
+6ft-20ft

Overall

20468

Females

8316

F18-39

8316

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1
+13ft-16ft

Overall

20164

Females

8160

F18-39

8160

25.2M→FINISH

25.2 - 26.2 mi

Top 74%
×2
+22ft-21ft

Overall

21568

Females

8849

F18-39

8849

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1296
Passed By
2067
Net Change
-771
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21559
5K → 10K192406-214#21559#21773
10K → 15K74334-260#21773#22033
15K → 20K61561-500#22033#22533
20K → HALF3217-214#22533#22747
HALF → 25K138109+29#22747#22718
25K → 30K141253-112#22718#22830
30K → 20M10443+61#22830#22769
20M → 21M12322+101#22769#22668
21M → 35K777+70#22668#22598
35K → 23M12033+87#22598#22511
23M → 24M5639+17#22511#22494
24M → 40K10619+87#22494#22407
40K → 25.2M430+43#22407#22364
25.2M → FINISH5824+34#22364#22330
TOTALS12962067-771
📊

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