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BOSTON MARATHON 2025

Kristen Mossman

Bib: 8412•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 48%
Gender (Female)
#0 / 12228
Top 33%
Masters (Masters Women)
#0 / 6759
Top 18%
Division (F60-64)
#0 / 624
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:36
Rank: #13096
Start → 5K
23:36 | 7:36/mi
10K· 6.21 mi
47:07
Rank: #12870 (+226)
5K → 10K
23:31 | 7:34/mi
15K· 9.32 mi
1:10:41
Rank: #12727 (+143)
10K → 15K
23:34 | 7:35/mi
20K· 12.43 mi
1:34:53
Rank: #12788 (-61)
15K → 20K
24:12 | 7:47/mi
Half· 13.11 mi
1:40:07
Rank: #12819 (-31)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
1:59:26
Rank: #12941 (-122)
Half → 25K
19:19 | 7:58/mi
30K· 18.64 mi
2:25:26
Rank: #13107 (-166)
25K → 30K
26:00 | 8:22/mi
20M
2:37:04
Rank: #13158 (-51)
30K → 20M
11:38 | 8:34/mi
21M
2:46:27
Rank: #13295 (-137)
20M → 21M
9:23 | 9:23/mi
35K· 21.75 mi
2:52:32
Rank: #13272 (+23)
21M → 35K
6:05 | 8:08/mi
23M
3:03:16
Rank: #13289 (-17)
35K → 23M
10:44 | 8:34/mi
24M
3:11:43
Rank: #13321 (-32)
23M → 24M
8:27 | 8:27/mi
40K· 24.85 mi
3:19:07
Rank: #13337 (-16)
24M → 40K
7:24 | 8:39/mi
25.2M
3:22:27
Rank: #13377 (-40)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:31:04
Rank: #13498 (-121)
25.2M → Finish
8:37 | 8:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:07
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:50:57
Pace8:28 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:32:0723:367:3623:36
7:36
-
10K
6.21 mi10:55:3847:077:3523:31
7:34
-0:02
15K
9.32 mi11:19:121:10:417:3523:34
7:35
+0:01
20K
12.43 mi11:43:241:34:537:3824:12
7:47
+0:12
Half
13.11 mi11:48:381:40:077:385:14
7:40
-0:07
25K
15.53 mi12:07:571:59:267:4119:19
7:58
+0:18
30K
18.64 mi12:33:572:25:267:4826:00
8:22
+0:24
20M
20.00 mi12:45:352:37:047:5111:38
8:34
+0:12
21M
21.00 mi12:54:582:46:277:569:23
9:23
+0:49
35K
21.75 mi13:01:032:52:327:566:05
8:08
-1:15
23M
23.00 mi13:11:473:03:167:5810:44
8:34
+0:26
24M
24.00 mi13:20:143:11:437:598:27
8:27
-0:07
40K
24.85 mi13:27:383:19:078:017:24
8:39
+0:12
25.2M
25.20 mi13:30:583:22:278:023:20
9:40
+1:01
Finish
26.22 mi13:39:353:31:048:038:37
8:27
-1:13

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

7:34 /mi

Average Pace

8:03 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:26

57% of race

Time at Steady Pace

1:18:55

37% of race

Time at Slower Pace

12:43

6% of race

Average Pace: 8:03 /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 mi10:32:0723:367:3623:36
7:36
#13096
10K
6.21 mi10:55:3847:077:3523:31
7:34
#12870
15K
9.32 mi11:19:121:10:417:3523:34
7:35
#12727
20K
12.43 mi11:43:241:34:537:3824:12
7:47
#12788
Half
13.11 mi11:48:381:40:077:385:14
7:40
#12819
25K
15.53 mi12:07:571:59:267:4119:19
7:58
#12941
30K
18.64 mi12:33:572:25:267:4826:00
8:22
#13107
20M
20.00 mi12:45:352:37:047:5111:38
8:34
#13158
21M
21.00 mi12:54:582:46:277:569:23
9:23
#13295
35K
21.75 mi13:01:032:52:327:566:05
8:08
#13272
23M
23.00 mi13:11:473:03:167:5810:44
8:34
#13289
24M
24.00 mi13:20:143:11:437:598:27
8:27
#13321
40K
24.85 mi13:27:383:19:078:017:24
8:39
#13337
25.2M
25.20 mi13:30:583:22:278:023:20
9:40
#13377
Finish
26.22 mi13:39:353:31:048:038:37
8:27
#13498
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi130963375337512492(Top 44%)3166(Top 26%)3166(Top 507%)
10K6.21 mi3.10 mi12870+2263272+1033272+10312767(Top 45%)3239(Top 26%)3239(Top 519%)
15K9.32 mi3.11 mi12727+1433223+493223+4912492(Top 44%)3166(Top 26%)3166(Top 507%)
20K12.43 mi3.11 mi12788-613320-973320-9713208(Top 47%)3661(Top 30%)3661(Top 587%)
Half13.11 mi0.68 mi12819-313348-283348-2813235(Top 47%)3635(Top 30%)3635(Top 583%)
25K15.53 mi2.42 mi12941-1223442-943442-9413641(Top 48%)4027(Top 33%)4027(Top 645%)
30K18.64 mi3.11 mi13107-1663620-1783620-17813952(Top 49%)4338(Top 35%)4338(Top 695%)
20M20.00 mi1.36 mi13158-513666-463666-4614178(Top 50%)4600(Top 38%)4600(Top 737%)
21M21.00 mi1.00 mi13295-1373771-1053771-10515546(Top 55%)5471(Top 45%)5471(Top 877%)
35K21.75 mi0.75 mi13272+233780-93780-913172(Top 46%)4256(Top 35%)4256(Top 682%)
23M23.00 mi1.25 mi13289-173837-573837-5713762(Top 48%)4671(Top 38%)4671(Top 749%)
24M24.00 mi1.00 mi13321-323877-403877-4014209(Top 50%)4928(Top 40%)4928(Top 790%)
40K24.85 mi0.85 mi13337-163915-383915-3814383(Top 51%)5175(Top 42%)5175(Top 829%)
25.2M25.20 mi0.35 mi13377-403945-303945-3015458(Top 54%)5782(Top 47%)5782(Top 927%)
Finish26.22 mi1.02 mi13498-1214038-934038-9315943(Top 56%)5981(Top 49%)5981(Top 958%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21stories
+97ft-345ft

Overall

12492

Females

3166

F60-64

3166

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

12767

Females

3239

F60-64

3239

10K→15K

6.2 - 9.3 mi

Top 44%
×3stories
+67ft-78ft

Overall

12492

Females

3166

F60-64

3166

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

13208

Females

3661

F60-64

3661

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

13235

Females

3635

F60-64

3635

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

13641

Females

4027

F60-64

4027

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

13952

Females

4338

F60-64

4338

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

14178

Females

4600

F60-64

4600

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

15546

Females

5471

F60-64

5471

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

13172

Females

4256

F60-64

4256

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

13762

Females

4671

F60-64

4671

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14209

Females

4928

F60-64

4928

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14383

Females

5175

F60-64

5175

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15458

Females

5782

F60-64

5782

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15943

Females

5981

F60-64

5981

Passing Analysis

Category:
Athletes Passed
1726
Passed By
2128
Net Change
-402
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13096
5K → 10K411185+226#13096#12870
10K → 15K265122+143#12870#12727
15K → 20K181242-61#12727#12788
20K → Half2253-31#12788#12819
Half → 25K119241-122#12819#12941
25K → 30K196362-166#12941#13107
30K → 20M95146-51#13107#13158
20M → 21M61198-137#13158#13295
21M → 35K7451+23#13295#13272
35K → 23M102119-17#13272#13289
23M → 24M6395-32#13289#13321
24M → 40K7490-16#13321#13337
40K → 25.2M2868-40#13337#13377
25.2M → Finish35156-121#13377#13498
TOTALS17262128-402
📊

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