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BOSTON MARATHON 2025

Chiman Lock

Bib: 26037•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:50/mi
30:34
↑ 97↓ 3451.5%
10K· 6.21 mi
9:58/mi
1:01:32
↑ 79↓ 1380.4%
15K· 9.32 mi
9:56/mi
1:32:25
↑ 67↓ 78
20K· 12.43 mi
10:01/mi
2:03:32
↑ 106↓ 860.1%
Half· 13.11 mi
9:48/mi
2:10:13
↑ 19↓ 370.5%
25K· 15.53 mi
10:19/mi
2:35:13
↑ 66↓ 880.2%
30K· 18.64 mi
10:35/mi
3:08:05
↑ 181↓ 1480.2%
20M
11:41/mi
3:23:57
↑ 64↓ 500.2%
21M
11:22/mi
3:35:19
↑ 106↓ 241.6%
35K· 21.75 mi
10:18/mi
3:43:01
↑ 17↓ 861.7%
23M
11:05/mi
3:56:53
↑ 23↓ 630.6%
24M
10:52/mi
4:07:45
↓ 821.3%
40K· 24.85 mi
11:03/mi
4:17:12
↓ 200.3%
25.2M
11:56/mi
4:21:19
↑ 13↓ 160.2%
Finish· 26.22 mi
10:21/mi
4:31:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:13
Pace9:56 /mi
2nd Half
Distance13.11 mi
Time2:21:39
Pace10:48 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4830:349:5030:34
9:50
-
10K
6.21 mi12:16:461:01:329:5430:58
9:58
+0:08
15K
9.32 mi12:47:391:32:259:5530:53
9:56
-0:02
20K
12.43 mi13:18:462:03:329:5631:07
10:01
+0:05
Half
13.11 mi13:25:272:10:139:566:41
9:48
-0:13
25K
15.53 mi13:50:272:35:1310:0025:00
10:19
+0:31
30K
18.64 mi14:23:193:08:0510:0532:52
10:35
+0:16
20M
20.00 mi14:39:113:23:5710:1215:52
11:41
+1:06
21M
21.00 mi14:50:333:35:1910:1511:22
11:22
-0:19
35K
21.75 mi14:58:153:43:0110:157:42
10:18
-1:04
23M
23.00 mi15:12:073:56:5310:1813:52
11:05
+0:47
24M
24.00 mi15:22:594:07:4510:1910:52
10:52
-0:13
40K
24.85 mi15:32:264:17:1210:219:27
11:03
+0:11
25.2M
25.20 mi15:36:334:21:1910:224:07
11:56
+0:53
Finish
26.22 mi15:47:064:31:5210:2310:33
10:21
-1:35

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

9:48 /mi

Average Pace

10:23 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:06

36% of race

Time at Steady Pace

1:47:14

39% of race

Time at Slower Pace

1:05:32

24% of race

Average Pace: 10:22 /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 mi11:45:4830:349:5030:34
9:50
#25181
10K
6.21 mi12:16:461:01:329:5430:58
9:58
#25196
15K
9.32 mi12:47:391:32:259:5530:53
9:56
#25084
20K
12.43 mi13:18:462:03:329:5631:07
10:01
#24858
Half
13.11 mi13:25:272:10:139:566:41
9:48
#24828
25K
15.53 mi13:50:272:35:1310:0025:00
10:19
#24694
30K
18.64 mi14:23:193:08:0510:0532:52
10:35
#24427
20M
20.00 mi14:39:113:23:5710:1215:52
11:41
#24484
21M
21.00 mi14:50:333:35:1910:1511:22
11:22
#24360
35K
21.75 mi14:58:153:43:0110:157:42
10:18
#24285
23M
23.00 mi15:12:073:56:5310:1813:52
11:05
#24250
24M
24.00 mi15:22:594:07:4510:1910:52
10:52
#24224
40K
24.85 mi15:32:264:17:1210:219:27
11:03
#24204
25.2M
25.20 mi15:36:334:21:1910:224:07
11:56
#24184
Finish
26.22 mi15:47:064:31:5210:2310:33
10:21
#24179
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi25181103011030124884(Top 88%)10159(Top 83%)10159(Top 560%)
10K6.21 mi3.10 mi25196-1510337-3610337-3625241(Top 89%)10363(Top 85%)10363(Top 572%)
15K9.32 mi3.11 mi25084+11210267+7010267+7024884(Top 88%)10159(Top 83%)10159(Top 560%)
20K12.43 mi3.11 mi24858+22610155+11210155+11224258(Top 85%)9856(Top 81%)9856(Top 544%)
Half13.11 mi0.68 mi24828+3010139+1610139+1624390(Top 86%)9934(Top 81%)9934(Top 548%)
25K15.53 mi2.42 mi24694+13410086+5310086+5323984(Top 84%)9732(Top 80%)9732(Top 537%)
30K18.64 mi3.11 mi24427+2679961+1259961+12523128(Top 81%)9396(Top 77%)9396(Top 518%)
20M20.00 mi1.36 mi24484-5710005-4410005-4424828(Top 87%)10375(Top 85%)10375(Top 572%)
21M21.00 mi1.00 mi24360+1249959+469959+4622327(Top 79%)9156(Top 75%)9156(Top 505%)
35K21.75 mi0.75 mi24285+759933+269933+2622693(Top 80%)9392(Top 77%)9392(Top 518%)
23M23.00 mi1.25 mi24250+359930+39930+323413(Top 82%)9812(Top 80%)9812(Top 541%)
24M24.00 mi1.00 mi24224+269924+69924+623714(Top 83%)9985(Top 82%)9985(Top 551%)
40K24.85 mi0.85 mi24204+209927-39927-323283(Top 82%)9841(Top 80%)9841(Top 543%)
25.2M25.20 mi0.35 mi24184+209929-29929-223131(Top 81%)9729(Top 80%)9729(Top 537%)
Finish26.22 mi1.02 mi24179+59930-19930-123940(Top 84%)10143(Top 83%)10143(Top 559%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

24884

Females

10159

F45-49

10159

5K→10K

3.1 - 6.2 mi

Top 89%
×5story building
+79ft-138ft

Overall

25241

Females

10363

F45-49

10363

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

24884

Females

10159

F45-49

10159

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24258

Females

9856

F45-49

9856

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24390

Females

9934

F45-49

9934

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

23984

Females

9732

F45-49

9732

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

23128

Females

9396

F45-49

9396

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

24828

Females

10375

F45-49

10375

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

22327

Females

9156

F45-49

9156

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22693

Females

9392

F45-49

9392

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23413

Females

9812

F45-49

9812

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23714

Females

9985

F45-49

9985

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

23283

Females

9841

F45-49

9841

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23131

Females

9729

F45-49

9729

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

23940

Females

10143

F45-49

10143

Passing Analysis

Category:
Athletes Passed
1655
Passed By
653
Net Change
+1002
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25181
5K → 10K175190-15#25181#25196
10K → 15K19482+112#25196#25084
15K → 20K26438+226#25084#24858
20K → Half4212+30#24858#24828
Half → 25K17440+134#24828#24694
25K → 30K29124+267#24694#24427
30K → 20M46103-57#24427#24484
20M → 21M13410+124#24484#24360
21M → 35K783+75#24360#24285
35K → 23M7944+35#24285#24250
23M → 24M5731+26#24250#24224
24M → 40K5030+20#24224#24204
40K → 25.2M3010+20#24204#24184
25.2M → Finish4136+5#24184#24179
TOTALS1655653+1002
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Questions or issues regarding timing data?

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing