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BOSTON MARATHON 2025

Erin Barker

Bib: 27337•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:49
Rank: #25402
Start → 5K
30:49 | 9:55/mi
10K· 6.21 mi
1:01:54
Rank: #25345 (+57)
5K → 10K
31:05 | 10:00/mi
15K· 9.32 mi
1:32:13
Rank: #25038 (+307)
10K → 15K
30:19 | 9:45/mi
20K· 12.43 mi
2:01:59
Rank: #24574 (+464)
15K → 20K
29:46 | 9:35/mi
Half· 13.11 mi
2:08:28
Rank: #24521 (+53)
20K → Half
6:29 | 9:30/mi
25K· 15.53 mi
2:32:30
Rank: #24291 (+230)
Half → 25K
24:02 | 9:55/mi
30K· 18.64 mi
3:03:10
Rank: #23747 (+544)
25K → 30K
30:40 | 9:52/mi
20M
3:16:46
Rank: #23549 (+198)
30K → 20M
13:36 | 10:00/mi
21M
3:26:26
Rank: #23233 (+316)
20M → 21M
9:40 | 9:40/mi
35K· 21.75 mi
3:33:29
Rank: #23127 (+106)
21M → 35K
7:03 | 9:25/mi
23M
3:45:31
Rank: #22902 (+225)
35K → 23M
12:02 | 9:37/mi
24M
3:56:05
Rank: #22909 (-7)
23M → 24M
10:34 | 10:34/mi
40K· 24.85 mi
4:03:57
Rank: #22717 (+192)
24M → 40K
7:52 | 9:12/mi
25.2M
4:07:11
Rank: #22623 (+94)
40K → 25.2M
3:14 | 9:23/mi
Finish· 26.22 mi
4:16:20
Rank: #22514 (+109)
25.2M → Finish
9:09 | 8:59/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:08:28
Pace9:48 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:07:52
Pace9:45 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0230:499:5530:49
9:55
-
10K
6.21 mi12:20:071:01:549:5831:05
10:00
+0:05
15K
9.32 mi12:50:261:32:139:5430:19
9:45
-0:15
20K
12.43 mi13:20:122:01:599:4929:46
9:35
-0:10
Half
13.11 mi13:26:412:08:289:486:29
9:30
-0:05
25K
15.53 mi13:50:432:32:309:4924:02
9:55
+0:25
30K
18.64 mi14:21:233:03:109:5030:40
9:52
-0:03
20M
20.00 mi14:34:593:16:469:5013:36
10:00
+0:08
21M
21.00 mi14:44:393:26:269:509:40
9:40
-0:20
35K
21.75 mi14:51:423:33:299:497:03
9:25
-0:15
23M
23.00 mi15:03:443:45:319:4812:02
9:37
+0:12
24M
24.00 mi15:14:183:56:059:5010:34
10:34
+0:57
40K
24.85 mi15:22:104:03:579:497:52
9:12
-1:22
25.2M
25.20 mi15:25:244:07:119:493:14
9:23
+0:11
Finish
26.22 mi15:34:334:16:209:479:09
8:59
-0:24

Checkpoints & Pacing

📈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

8:59 /mi

Average Pace

9:47 /mi

Slowest Pace

10:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:14

57% of race

Time at Steady Pace

1:50:06

43% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:47 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:49:0230:499:5530:49
9:55
#25402
10K
6.21 mi12:20:071:01:549:5831:05
10:00
#25345
15K
9.32 mi12:50:261:32:139:5430:19
9:45
#25038
20K
12.43 mi13:20:122:01:599:4929:46
9:35
#24574
Half
13.11 mi13:26:412:08:289:486:29
9:30
#24521
25K
15.53 mi13:50:432:32:309:4924:02
9:55
#24291
30K
18.64 mi14:21:233:03:109:5030:40
9:52
#23747
20M
20.00 mi14:34:593:16:469:5013:36
10:00
#23549
21M
21.00 mi14:44:393:26:269:509:40
9:40
#23233
35K
21.75 mi14:51:423:33:299:497:03
9:25
#23127
23M
23.00 mi15:03:443:45:319:4812:02
9:37
#22902
24M
24.00 mi15:14:183:56:059:5010:34
10:34
#22909
40K
24.85 mi15:22:104:03:579:497:52
9:12
#22717
25.2M
25.20 mi15:25:244:07:119:493:14
9:23
#22623
Finish
26.22 mi15:34:334:16:209:479:09
8:59
#22514
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25402104271042724449(Top 86%)9922(Top 81%)9922(Top 181%)
10K6.21 mi3.10 mi25345+5710420+710420+725340(Top 89%)10424(Top 85%)10424(Top 191%)
15K9.32 mi3.11 mi25038+30710245+17510245+17524449(Top 86%)9922(Top 81%)9922(Top 181%)
20K12.43 mi3.11 mi24574+46410012+23310012+23323156(Top 82%)9227(Top 75%)9227(Top 169%)
Half13.11 mi0.68 mi24521+539985+279985+2723588(Top 83%)9475(Top 77%)9475(Top 173%)
25K15.53 mi2.42 mi24291+2309872+1139872+11323034(Top 81%)9211(Top 75%)9211(Top 168%)
30K18.64 mi3.11 mi23747+5449599+2739599+27321229(Top 75%)8360(Top 68%)8360(Top 153%)
20M20.00 mi1.36 mi23549+1989505+949505+9420988(Top 74%)8356(Top 68%)8356(Top 153%)
21M21.00 mi1.00 mi23233+3169353+1529353+15216914(Top 60%)6224(Top 51%)6224(Top 114%)
35K21.75 mi0.75 mi23127+1069300+539300+5320086(Top 71%)8036(Top 66%)8036(Top 147%)
23M23.00 mi1.25 mi22902+2259209+919209+9119149(Top 67%)7593(Top 62%)7593(Top 139%)
24M24.00 mi1.00 mi22909-79239-309239-3023000(Top 81%)9636(Top 79%)9636(Top 176%)
40K24.85 mi0.85 mi22717+1929146+939146+9317401(Top 61%)6819(Top 56%)6819(Top 125%)
25.2M25.20 mi0.35 mi22623+949112+349112+3414028(Top 49%)5071(Top 41%)5071(Top 93%)
Finish26.22 mi1.02 mi22514+1099068+449068+4418962(Top 67%)7583(Top 62%)7583(Top 139%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24449

Females

9922

F18-39

9922

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25340

Females

10424

F18-39

10424

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24449

Females

9922

F18-39

9922

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

23156

Females

9227

F18-39

9227

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23588

Females

9475

F18-39

9475

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

23034

Females

9211

F18-39

9211

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

21229

Females

8360

F18-39

8360

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

20988

Females

8356

F18-39

8356

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16914

Females

6224

F18-39

6224

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

20086

Females

8036

F18-39

8036

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

19149

Females

7593

F18-39

7593

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

23000

Females

9636

F18-39

9636

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17401

Females

6819

F18-39

6819

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

14028

Females

5071

F18-39

5071

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

18962

Females

7583

F18-39

7583

Passing Analysis

Category:
Athletes Passed
3194
Passed By
306
Net Change
+2888
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25402
5K → 10K219162+57#25402#25345
10K → 15K33023+307#25345#25038
15K → 20K4695+464#25038#24574
20K → Half574+53#24574#24521
Half → 25K25020+230#24521#24291
25K → 30K5506+544#24291#23747
30K → 20M2046+198#23747#23549
20M → 21M3160+316#23549#23233
21M → 35K1093+106#23233#23127
35K → 23M2272+225#23127#22902
23M → 24M6067-7#22902#22909
24M → 40K1931+192#22909#22717
40K → 25.2M951+94#22717#22623
25.2M → Finish1156+109#22623#22514
TOTALS3194306+2888
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing