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BOSTON MARATHON 2025

Justine Baldwin

Bib: 31936•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 (F40-44)
#0 / 1718
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
11:30/mi
35:43
↑ 97↓ 3451.5%
10K· 6.21 mi
11:26/mi
1:11:15
↑ 79↓ 1380.4%
15K· 9.32 mi
11:12/mi
1:46:02
↑ 67↓ 78
20K· 12.43 mi
11:10/mi
2:20:45
↑ 106↓ 860.1%
Half· 13.11 mi
11:10/mi
2:28:22
↑ 19↓ 370.5%
25K· 15.53 mi
11:30/mi
2:56:14
↑ 66↓ 880.2%
30K· 18.64 mi
11:42/mi
3:32:35
↑ 181↓ 1480.2%
20M
11:49/mi
3:48:39
↑ 64↓ 500.2%
21M
12:23/mi
4:01:02
↑ 106↓ 241.6%
35K· 21.75 mi
11:51/mi
4:09:54
↑ 17↓ 861.7%
23M
12:14/mi
4:25:13
↑ 23↓ 630.6%
24M
11:47/mi
4:37:00
↓ 821.3%
40K· 24.85 mi
11:55/mi
4:47:11
↓ 200.3%
25.2M
12:51/mi
4:51:37
↑ 13↓ 160.2%
Finish· 26.22 mi
10:43/mi
5:02:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:28:22
Pace11:19 /mi
2nd Half
Distance13.11 mi
Time2:34:10
Pace11:46 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:0535:4311:3035:43
11:30
-
10K
6.21 mi12:34:371:11:1511:2835:32
11:26
-0:04
15K
9.32 mi13:09:241:46:0211:2334:47
11:12
-0:14
20K
12.43 mi13:44:072:20:4511:2034:43
11:10
-0:02
Half
13.11 mi13:51:442:28:2211:197:37
11:10
0:00
25K
15.53 mi14:19:362:56:1411:2127:52
11:30
+0:20
30K
18.64 mi14:55:573:32:3511:2436:21
11:42
+0:12
20M
20.00 mi15:12:013:48:3911:2616:04
11:49
+0:07
21M
21.00 mi15:24:244:01:0211:2912:23
12:23
+0:34
35K
21.75 mi15:33:164:09:5411:298:52
11:51
-0:32
23M
23.00 mi15:48:354:25:1311:3215:19
12:14
+0:23
24M
24.00 mi16:00:224:37:0011:3311:47
11:47
-0:27
40K
24.85 mi16:10:334:47:1111:3310:11
11:55
+0:08
25.2M
25.20 mi16:14:594:51:3711:344:26
12:51
+0:56
Finish
26.22 mi16:25:545:02:3211:3310:55
10:43
-2:08

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

10:43 /mi

Average Pace

11:33 /mi

Slowest Pace

12:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:55:17

78% of race

Time at Steady Pace

1:02:49

21% of race

Time at Slower Pace

4:26

1% of race

Average Pace: 11:32 /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 mi11:59:0535:4311:3035:43
11:30
#28002
10K
6.21 mi12:34:371:11:1511:2835:32
11:26
#27790
15K
9.32 mi13:09:241:46:0211:2334:47
11:12
#27511
20K
12.43 mi13:44:072:20:4511:2034:43
11:10
#27184
Half
13.11 mi13:51:442:28:2211:197:37
11:10
#27160
25K
15.53 mi14:19:362:56:1411:2127:52
11:30
#26958
30K
18.64 mi14:55:573:32:3511:2436:21
11:42
#26657
20M
20.00 mi15:12:013:48:3911:2616:04
11:49
#26552
21M
21.00 mi15:24:244:01:0211:2912:23
12:23
#26451
35K
21.75 mi15:33:164:09:5411:298:52
11:51
#26420
23M
23.00 mi15:48:354:25:1311:3215:19
12:14
#26385
24M
24.00 mi16:00:224:37:0011:3311:47
11:47
#26339
40K
24.85 mi16:10:334:47:1111:3310:11
11:55
#26294
25.2M
25.20 mi16:14:594:51:3711:344:26
12:51
#26278
Finish
26.22 mi16:25:545:02:3211:3310:55
10:43
#26246
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi28002119641196426915(Top 95%)11328(Top 93%)11328(Top 659%)
10K6.21 mi3.10 mi27790+21211820+14411820+14427529(Top 97%)11683(Top 96%)11683(Top 680%)
15K9.32 mi3.11 mi27511+27911663+15711663+15726915(Top 95%)11328(Top 93%)11328(Top 659%)
20K12.43 mi3.11 mi27184+32711474+18911474+18926260(Top 92%)10946(Top 90%)10946(Top 637%)
Half13.11 mi0.68 mi27160+2411460+1411460+1426714(Top 94%)11246(Top 92%)11246(Top 655%)
25K15.53 mi2.42 mi26958+20211357+10311357+10325845(Top 91%)10773(Top 88%)10773(Top 627%)
30K18.64 mi3.11 mi26657+30111197+16011197+16025142(Top 89%)10481(Top 86%)10481(Top 610%)
20M20.00 mi1.36 mi26552+10511149+4811149+4825007(Top 88%)10477(Top 86%)10477(Top 610%)
21M21.00 mi1.00 mi26451+10111096+5311096+5324216(Top 85%)10146(Top 83%)10146(Top 591%)
35K21.75 mi0.75 mi26420+3111092+411092+425624(Top 90%)10911(Top 89%)10911(Top 635%)
23M23.00 mi1.25 mi26385+3511081+1111081+1125435(Top 90%)10826(Top 89%)10826(Top 630%)
24M24.00 mi1.00 mi26339+4611068+1311068+1325364(Top 89%)10809(Top 88%)10809(Top 629%)
40K24.85 mi0.85 mi26294+4511052+1611052+1624757(Top 87%)10556(Top 86%)10556(Top 614%)
25.2M25.20 mi0.35 mi26278+1611044+811044+824794(Top 87%)10579(Top 87%)10579(Top 616%)
Finish26.22 mi1.02 mi26246+3211032+1211032+1224745(Top 87%)10539(Top 86%)10539(Top 613%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

26915

Females

11328

F40-44

11328

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

27529

Females

11683

F40-44

11683

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

26915

Females

11328

F40-44

11328

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

26260

Females

10946

F40-44

10946

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

26714

Females

11246

F40-44

11246

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

25845

Females

10773

F40-44

10773

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

25142

Females

10481

F40-44

10481

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

25007

Females

10477

F40-44

10477

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

24216

Females

10146

F40-44

10146

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

25624

Females

10911

F40-44

10911

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

25435

Females

10826

F40-44

10826

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

25364

Females

10809

F40-44

10809

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24757

Females

10556

F40-44

10556

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24794

Females

10579

F40-44

10579

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

24745

Females

10539

F40-44

10539

Passing Analysis

Category:
Athletes Passed
1857
Passed By
101
Net Change
+1756
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28002
5K → 10K2219+212#28002#27790
10K → 15K2790+279#27790#27511
15K → 20K3281+327#27511#27184
20K → Half306+24#27184#27160
Half → 25K2108+202#27160#26958
25K → 30K3065+301#26958#26657
30K → 20M1105+105#26657#26552
20M → 21M1065+101#26552#26451
21M → 35K409+31#26451#26420
35K → 23M5217+35#26420#26385
23M → 24M559+46#26385#26339
24M → 40K5611+45#26339#26294
40K → 25.2M193+16#26294#26278
25.2M → Finish4513+32#26278#26246
TOTALS1857101+1756
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing