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BOSTON MARATHON 2025

Kerry Walker

Bib: 9492•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Female)
#0 / 12228
Top 18%
Masters (Masters Women)
#0 / 6759
Top 7%
Division (F50-54)
#0 / 1303
Top 3%
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
7:07/mi
22:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:13/mi
44:32
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:07:31
↑ 67↓ 78
20K· 12.43 mi
7:32/mi
1:30:55
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:36:01
↑ 19↓ 370.5%
25K· 15.53 mi
7:44/mi
1:54:46
↑ 66↓ 880.2%
30K· 18.64 mi
7:59/mi
2:19:33
↑ 181↓ 1480.2%
20M
8:06/mi
2:30:33
↑ 64↓ 500.2%
21M
8:40/mi
2:39:13
↑ 106↓ 241.6%
35K· 21.75 mi
7:33/mi
2:44:52
↑ 17↓ 861.7%
23M
7:46/mi
2:54:36
↑ 23↓ 630.6%
24M
7:39/mi
3:02:15
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:08:50
↓ 200.3%
25.2M
8:36/mi
3:11:48
↑ 13↓ 160.2%
Finish· 26.22 mi
7:39/mi
3:19:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:01
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:43:35
Pace7:54 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3722:067:0722:06
7:07
-
10K
6.21 mi11:10:0344:327:1022:26
7:13
+0:06
15K
9.32 mi11:33:021:07:317:1522:59
7:24
+0:11
20K
12.43 mi11:56:261:30:557:1923:24
7:32
+0:08
Half
13.11 mi12:01:321:36:017:195:06
7:29
-0:03
25K
15.53 mi12:20:171:54:467:2318:45
7:44
+0:15
30K
18.64 mi12:45:042:19:337:2924:47
7:59
+0:15
20M
20.00 mi12:56:042:30:337:3211:00
8:06
+0:07
21M
21.00 mi13:04:442:39:137:358:40
8:40
+0:34
35K
21.75 mi13:10:232:44:527:355:39
7:33
-1:07
23M
23.00 mi13:20:072:54:367:359:44
7:46
+0:13
24M
24.00 mi13:27:463:02:157:367:39
7:39
-0:07
40K
24.85 mi13:34:213:08:507:366:35
7:42
+0:03
25.2M
25.20 mi13:37:193:11:487:372:58
8:36
+0:54
Finish
26.22 mi13:45:073:19:367:377:48
7:39
-0:57

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

7:07 /mi

Average Pace

7:37 /mi

Slowest Pace

8:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:31

34% of race

Time at Steady Pace

1:24:40

42% of race

Time at Slower Pace

47:25

24% of race

Average Pace: 7:37 /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 mi10:47:3722:067:0722:06
7:07
#8783
10K
6.21 mi11:10:0344:327:1022:26
7:13
#9181
15K
9.32 mi11:33:021:07:317:1522:59
7:24
#9700
20K
12.43 mi11:56:261:30:557:1923:24
7:32
#10012
Half
13.11 mi12:01:321:36:017:195:06
7:29
#10094
25K
15.53 mi12:20:171:54:467:2318:45
7:44
#10343
30K
18.64 mi12:45:042:19:337:2924:47
7:59
#10461
20M
20.00 mi12:56:042:30:337:3211:00
8:06
#10496
21M
21.00 mi13:04:442:39:137:358:40
8:40
#10536
35K
21.75 mi13:10:232:44:527:355:39
7:33
#10454
23M
23.00 mi13:20:072:54:367:359:44
7:46
#10282
24M
24.00 mi13:27:463:02:157:367:39
7:39
#10168
40K
24.85 mi13:34:213:08:507:366:35
7:42
#10050
25.2M
25.20 mi13:37:193:11:487:372:58
8:36
#10035
Finish
26.22 mi13:45:073:19:367:377:48
7:39
#10026
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi87831281128110869(Top 38%)2307(Top 19%)2307(Top 177%)
10K6.21 mi3.10 mi9181-3981451-1701451-1709681(Top 34%)1677(Top 14%)1677(Top 129%)
15K9.32 mi3.11 mi9700-5191696-2451696-24510869(Top 38%)2307(Top 19%)2307(Top 177%)
20K12.43 mi3.11 mi10012-3121871-1751871-17511041(Top 39%)2493(Top 20%)2493(Top 191%)
Half13.11 mi0.68 mi10094-821913-421913-4211522(Top 41%)2681(Top 22%)2681(Top 206%)
25K15.53 mi2.42 mi10343-2492063-1502063-15011817(Top 42%)3020(Top 25%)3020(Top 232%)
30K18.64 mi3.11 mi10461-1182182-1192182-11911222(Top 40%)2893(Top 24%)2893(Top 222%)
20M20.00 mi1.36 mi10496-352250-682250-6811079(Top 39%)2976(Top 24%)2976(Top 228%)
21M21.00 mi1.00 mi10536-402311-612311-6111476(Top 40%)3331(Top 27%)3331(Top 256%)
35K21.75 mi0.75 mi10454+822285+262285+269051(Top 32%)2145(Top 18%)2145(Top 165%)
23M23.00 mi1.25 mi10282+1722254+312254+318432(Top 30%)2010(Top 16%)2010(Top 154%)
24M24.00 mi1.00 mi10168+1142226+282226+288813(Top 31%)2239(Top 18%)2239(Top 172%)
40K24.85 mi0.85 mi10050+1182199+272199+278120(Top 29%)2047(Top 17%)2047(Top 157%)
25.2M25.20 mi0.35 mi10035+152211-122211-129475(Top 33%)2752(Top 23%)2752(Top 211%)
Finish26.22 mi1.02 mi10026+92235-242235-2410366(Top 36%)3152(Top 26%)3152(Top 242%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10869

Females

2307

F50-54

2307

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9681

Females

1677

F50-54

1677

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10869

Females

2307

F50-54

2307

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

11041

Females

2493

F50-54

2493

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11522

Females

2681

F50-54

2681

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11817

Females

3020

F50-54

3020

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11222

Females

2893

F50-54

2893

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11079

Females

2976

F50-54

2976

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11476

Females

3331

F50-54

3331

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9051

Females

2145

F50-54

2145

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8432

Females

2010

F50-54

2010

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8813

Females

2239

F50-54

2239

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8120

Females

2047

F50-54

2047

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9475

Females

2752

F50-54

2752

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

10366

Females

3152

F50-54

3152

Passing Analysis

Category:
Athletes Passed
1444
Passed By
2683
Net Change
-1243
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8783
5K → 10K86484-398#8783#9181
10K → 15K53571-519#9181#9700
15K → 20K103413-312#9700#10012
20K → Half1294-82#10012#10094
Half → 25K97346-249#10094#10343
25K → 30K199316-118#10343#10461
30K → 20M110145-35#10461#10496
20M → 21M97137-40#10496#10536
21M → 35K10018+82#10536#10454
35K → 23M20028+172#10454#10282
23M → 24M13319+114#10282#10168
24M → 40K13820+118#10168#10050
40K → 25.2M4126+15#10050#10035
25.2M → Finish7566+9#10035#10026
TOTALS14442683-1243
📊

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