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BOSTON MARATHON 2025

Kaylee Dunn

MA

Bib: 12208 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 16%
Gender (Female)
#0 / 12228
Top 3%
Division (F18-39)
#0 / 5469
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:47/mi
21:05
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:46/mi
42:06
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:45/mi
1:03:05
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:47/mi
1:24:09
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:46/mi
1:28:46
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:45/mi
1:45:09
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:49/mi
2:06:20
↑ 181↓ 1480.2%
138 ft elev
20M
6:49/mi
2:15:36
↑ 64↓ 500.2%
148 ft elev
21M
7:08/mi
2:22:44
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:34/mi
2:27:39
↑ 17↓ 861.7%
156 ft elev
23M
6:47/mi
2:36:08
↑ 23↓ 630.6%
116 ft elev
24M
6:41/mi
2:42:49
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:47/mi
2:48:37
↓ 200.3%
20 ft elev
25.2M
7:32/mi
2:51:13
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:55/mi
2:59:17
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:46
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:30:31
Pace6:54 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1921:056:4721:05
6:47
-
10K
6.21 mi11:09:2042:066:4721:01
6:46
-0:01
15K
9.32 mi11:30:191:03:056:4620:59
6:45
-0:01
20K
12.43 mi11:51:231:24:096:4621:04
6:47
+0:02
Half
13.11 mi11:56:001:28:466:464:37
6:46
-0:01
25K
15.53 mi12:12:231:45:096:4616:23
6:45
-0:01
30K
18.64 mi12:33:342:06:206:4721:11
6:49
+0:04
20M
20.00 mi12:42:502:15:366:479:16
6:49
0:00
21M
21.00 mi12:49:582:22:446:487:08
7:08
+0:19
35K
21.75 mi12:54:532:27:396:474:55
6:34
-0:34
23M
23.00 mi13:03:222:36:086:478:29
6:47
+0:13
24M
24.00 mi13:10:032:42:496:476:41
6:41
-0:06
40K
24.85 mi13:15:512:48:376:475:48
6:47
+0:06
25.2M
25.20 mi13:18:272:51:136:482:36
7:32
+0:45
Finish
26.22 mi13:26:312:59:176:518:04
7:55
+0:23

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

6:34 /mi

Average Pace

6:51 /mi

Slowest Pace

7:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:55

3% of race

Time at Steady Pace

2:36:34

87% of race

Time at Slower Pace

17:48

10% of race

Average Pace: 6:50 /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 mi10:48:1921:056:4721:05
6:47
#6225
10K
6.21 mi11:09:2042:066:4721:01
6:46
#6068
15K
9.32 mi11:30:191:03:056:4620:59
6:45
#5905
20K
12.43 mi11:51:231:24:096:4621:04
6:47
#5684
Half
13.11 mi11:56:001:28:466:464:37
6:46
#5697
25K
15.53 mi12:12:231:45:096:4616:23
6:45
#5454
30K
18.64 mi12:33:342:06:206:4721:11
6:49
#4978
20M
20.00 mi12:42:502:15:366:479:16
6:49
#4781
21M
21.00 mi12:49:582:22:446:487:08
7:08
#4591
35K
21.75 mi12:54:532:27:396:474:55
6:34
#4474
23M
23.00 mi13:03:222:36:086:478:29
6:47
#4292
24M
24.00 mi13:10:032:42:496:476:41
6:41
#4182
40K
24.85 mi13:15:512:48:376:475:48
6:47
#4105
25.2M
25.20 mi13:18:272:51:136:482:36
7:32
#4089
Finish
26.22 mi13:26:312:59:176:518:04
7:55
#4443
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi62255135135650(Top 20%)472(Top 4%)472(Top 9%)
10K6.21 mi3.10 mi6068+157491+22491+226018(Top 21%)502(Top 4%)502(Top 9%)
15K9.32 mi3.11 mi5905+163476+15476+155650(Top 20%)472(Top 4%)472(Top 9%)
20K12.43 mi3.11 mi5684+221452+24452+245129(Top 18%)389(Top 3%)389(Top 7%)
Half13.11 mi0.68 mi5697-13454-2454-25909(Top 21%)507(Top 4%)507(Top 9%)
25K15.53 mi2.42 mi5454+243426+28426+284568(Top 16%)339(Top 3%)339(Top 6%)
30K18.64 mi3.11 mi4978+476372+54372+543573(Top 13%)251(Top 2%)251(Top 5%)
20M20.00 mi1.36 mi4781+197343+29343+293090(Top 11%)214(Top 2%)214(Top 4%)
21M21.00 mi1.00 mi4591+190322+21322+212859(Top 10%)201(Top 2%)201(Top 4%)
35K21.75 mi0.75 mi4474+117317+5317+52872(Top 10%)217(Top 2%)217(Top 4%)
23M23.00 mi1.25 mi4292+182298+19298+192616(Top 9%)197(Top 2%)197(Top 4%)
24M24.00 mi1.00 mi4182+110297+1297+12940(Top 10%)260(Top 2%)260(Top 5%)
40K24.85 mi0.85 mi4105+77295+2295+22797(Top 10%)253(Top 2%)253(Top 5%)
25.2M25.20 mi0.35 mi4089+16299-4299-43657(Top 13%)459(Top 4%)459(Top 8%)
Finish26.22 mi1.02 mi4443-354355-56355-5612294(Top 43%)4064(Top 33%)4064(Top 74%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21story building
+97ft-345ft

Overall

5650

Females

472

F18-39

472

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

6018

Females

502

F18-39

502

10K→15K

6.2 - 9.3 mi

Top 20%
×3story building
+67ft-78ft

Overall

5650

Females

472

F18-39

472

15K→20K

9.3 - 12.4 mi

Top 18%
×5story building
+106ft-86ft

Overall

5129

Females

389

F18-39

389

20K→Half

12.4 - 13.1 mi

Top 21%
×2story building
+19ft-37ft

Overall

5909

Females

507

F18-39

507

Half→25K

13.1 - 15.5 mi

Top 16%
×4story building
+66ft-88ft

Overall

4568

Females

339

F18-39

339

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3573

Females

251

F18-39

251

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

3090

Females

214

F18-39

214

20M→21M

20.0 - 21.0 mi

Top 10%
×8story building
+106ft-24ft

Overall

2859

Females

201

F18-39

201

21M→35K

21.0 - 21.8 mi

Top 10%
×7story building
+17ft-86ft

Overall

2872

Females

217

F18-39

217

35K→23M

21.8 - 23.0 mi

Top 9%
×5story building
+23ft-63ft

Overall

2616

Females

197

F18-39

197

23M→24M

23.0 - 24.0 mi

Top 10%
×6story building
+12ft-82ft

Overall

2940

Females

260

F18-39

260

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2797

Females

253

F18-39

253

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3657

Females

459

F18-39

459

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

12294

Females

4064

F18-39

4064

Passing Analysis

Category:
Athletes Passed
2441
Passed By
659
Net Change
+1782
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6225
5K → 10K268111+157#6225#6068
10K → 15K22562+163#6068#5905
15K → 20K25433+221#5905#5684
20K → Half2033-13#5684#5697
Half → 25K26118+243#5697#5454
25K → 30K4793+476#5454#4978
30K → 20M2003+197#4978#4781
20M → 21M1955+190#4781#4591
21M → 35K1203+117#4591#4474
35K → 23M1886+182#4474#4292
23M → 24M1166+110#4292#4182
24M → 40K836+77#4182#4105
40K → 25.2M2913+16#4105#4089
25.2M → Finish3357-354#4089#4443
TOTALS2441659+1782
📊

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