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BOSTON MARATHON 2025

Heather Lin

Bib: 24432•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
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
9:21/mi
29:04
↑ 97↓ 3451.5%
10K· 6.21 mi
9:27/mi
58:26
↑ 79↓ 1380.4%
15K· 9.32 mi
9:18/mi
1:27:20
↑ 67↓ 78
20K· 12.43 mi
9:40/mi
1:57:21
↑ 106↓ 860.1%
Half· 13.11 mi
9:46/mi
2:04:01
↑ 19↓ 370.5%
25K· 15.53 mi
9:48/mi
2:27:47
↑ 66↓ 880.2%
30K· 18.64 mi
10:21/mi
2:59:55
↑ 181↓ 1480.2%
20M
10:32/mi
3:14:14
↑ 64↓ 500.2%
21M
11:39/mi
3:25:53
↑ 106↓ 241.6%
35K· 21.75 mi
10:03/mi
3:33:24
↑ 17↓ 861.7%
23M
10:26/mi
3:46:28
↑ 23↓ 630.6%
24M
10:25/mi
3:56:53
↓ 821.3%
40K· 24.85 mi
10:22/mi
4:05:45
↓ 200.3%
25.2M
11:33/mi
4:09:44
↑ 13↓ 160.2%
Finish· 26.22 mi
10:30/mi
4:20:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:01
Pace9:28 /mi
2nd Half
Distance13.11 mi
Time2:16:25
Pace10:24 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:3529:049:2129:04
9:21
-
10K
6.21 mi11:57:5758:269:2429:22
9:27
+0:06
15K
9.32 mi12:26:511:27:209:2228:54
9:18
-0:09
20K
12.43 mi12:56:521:57:219:2730:01
9:40
+0:22
Half
13.11 mi13:03:322:04:019:286:40
9:46
+0:06
25K
15.53 mi13:27:182:27:479:3123:46
9:48
+0:02
30K
18.64 mi13:59:262:59:559:3932:08
10:21
+0:33
20M
20.00 mi14:13:453:14:149:4314:19
10:32
+0:11
21M
21.00 mi14:25:243:25:539:4811:39
11:39
+1:07
35K
21.75 mi14:32:553:33:249:497:31
10:03
-1:36
23M
23.00 mi14:45:593:46:289:5113:04
10:26
+0:23
24M
24.00 mi14:56:243:56:539:5210:25
10:25
-0:01
40K
24.85 mi15:05:164:05:459:538:52
10:22
-0:03
25.2M
25.20 mi15:09:154:09:449:553:59
11:33
+1:11
Finish
26.22 mi15:19:574:20:269:5610:42
10:30
-1:03

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

9:18 /mi

Average Pace

9:56 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:47

57% of race

Time at Steady Pace

1:37:01

37% of race

Time at Slower Pace

15:38

6% of race

Average Pace: 9:56 /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 mi11:28:3529:049:2129:04
9:21
#23767
10K
6.21 mi11:57:5758:269:2429:22
9:27
#23899
15K
9.32 mi12:26:511:27:209:2228:54
9:18
#23661
20K
12.43 mi12:56:521:57:219:2730:01
9:40
#23603
Half
13.11 mi13:03:322:04:019:286:40
9:46
#23632
25K
15.53 mi13:27:182:27:479:3123:46
9:48
#23454
30K
18.64 mi13:59:262:59:559:3932:08
10:21
#23251
20M
20.00 mi14:13:453:14:149:4314:19
10:32
#23185
21M
21.00 mi14:25:243:25:539:4811:39
11:39
#23153
35K
21.75 mi14:32:553:33:249:497:31
10:03
#23116
23M
23.00 mi14:45:593:46:289:5113:04
10:26
#23042
24M
24.00 mi14:56:243:56:539:5210:25
10:25
#23024
40K
24.85 mi15:05:164:05:459:538:52
10:22
#22945
25.2M
25.20 mi15:09:154:09:449:553:59
11:33
#22945
Finish
26.22 mi15:19:574:20:269:5610:42
10:30
#23002
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi237679567956723227(Top 82%)9223(Top 75%)9223(Top 928%)
10K6.21 mi3.10 mi23899-1329632-659632-6523990(Top 84%)9675(Top 79%)9675(Top 973%)
15K9.32 mi3.11 mi23661+2389496+1369496+13623227(Top 82%)9223(Top 75%)9223(Top 928%)
20K12.43 mi3.11 mi23603+589465+319465+3123382(Top 82%)9353(Top 76%)9353(Top 941%)
Half13.11 mi0.68 mi23632-299480-159480-1524317(Top 86%)9879(Top 81%)9879(Top 994%)
25K15.53 mi2.42 mi23454+1789386+949386+9422778(Top 80%)9075(Top 74%)9075(Top 913%)
30K18.64 mi3.11 mi23251+2039323+639323+6322582(Top 80%)9096(Top 74%)9096(Top 915%)
20M20.00 mi1.36 mi23185+669302+219302+2122543(Top 79%)9181(Top 75%)9181(Top 924%)
21M21.00 mi1.00 mi23153+329305-39305-322930(Top 81%)9462(Top 77%)9462(Top 952%)
35K21.75 mi0.75 mi23116+379294+119294+1122059(Top 78%)9067(Top 74%)9067(Top 912%)
23M23.00 mi1.25 mi23042+749286+89286+821854(Top 77%)8993(Top 74%)8993(Top 905%)
24M24.00 mi1.00 mi23024+189304-189304-1822593(Top 80%)9431(Top 77%)9431(Top 949%)
40K24.85 mi0.85 mi22945+799279+259279+2521593(Top 76%)8985(Top 73%)8985(Top 904%)
25.2M25.20 mi0.35 mi229459287-89287-822214(Top 78%)9264(Top 76%)9264(Top 932%)
Finish26.22 mi1.02 mi23002-579320-339320-3324291(Top 86%)10312(Top 84%)10312(Top 1037%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23227

Females

9223

F55-59

9223

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23990

Females

9675

F55-59

9675

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23227

Females

9223

F55-59

9223

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23382

Females

9353

F55-59

9353

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24317

Females

9879

F55-59

9879

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22778

Females

9075

F55-59

9075

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22582

Females

9096

F55-59

9096

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22543

Females

9181

F55-59

9181

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

22930

Females

9462

F55-59

9462

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

22059

Females

9067

F55-59

9067

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

21854

Females

8993

F55-59

8993

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22593

Females

9431

F55-59

9431

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21593

Females

8985

F55-59

8985

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22214

Females

9264

F55-59

9264

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

24291

Females

10312

F55-59

10312

Passing Analysis

Category:
Athletes Passed
1703
Passed By
938
Net Change
+765
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23767
5K → 10K194326-132#23767#23899
10K → 15K29254+238#23899#23661
15K → 20K165107+58#23661#23603
20K → Half1140-29#23603#23632
Half → 25K21941+178#23632#23454
25K → 30K27269+203#23454#23251
30K → 20M10640+66#23251#23185
20M → 21M7947+32#23185#23153
21M → 35K6124+37#23153#23116
35K → 23M10026+74#23116#23042
23M → 24M6749+18#23042#23024
24M → 40K9112+79#23024#22945
40K → 25.2M22220#22945#22945
25.2M → Finish2481-57#22945#23002
TOTALS1703938+765
📊

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