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BOSTON MARATHON 2025

Kelly Kulsrud

Bib: 16112•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 19%
Masters (Masters Women)
#0 / 6759
Top 7%
Division (F40-44)
#0 / 1718
Top 16%
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
7:14/mi
22:29
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
45:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:27
↑ 67↓ 78
20K· 12.43 mi
7:28/mi
1:31:40
↑ 106↓ 860.1%
Half· 13.11 mi
7:18/mi
1:36:39
↑ 19↓ 370.5%
25K· 15.53 mi
7:32/mi
1:54:56
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:19:25
↑ 181↓ 1480.2%
20M
8:01/mi
2:30:18
↑ 64↓ 500.2%
21M
8:27/mi
2:38:45
↑ 106↓ 241.6%
35K· 21.75 mi
7:34/mi
2:44:25
↑ 17↓ 861.7%
23M
7:56/mi
2:54:21
↑ 23↓ 630.6%
24M
7:50/mi
3:02:11
↓ 821.3%
40K· 24.85 mi
8:02/mi
3:09:03
↓ 200.3%
25.2M
8:54/mi
3:12:07
↑ 13↓ 160.2%
Finish· 26.22 mi
7:48/mi
3:20:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:39
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:43:25
Pace7:53 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:0422:297:1422:29
7:14
-
10K
6.21 mi11:19:1045:357:2023:06
7:26
+0:12
15K
9.32 mi11:42:021:08:277:2122:52
7:22
-0:04
20K
12.43 mi12:05:151:31:407:2323:13
7:28
+0:06
Half
13.11 mi12:10:141:36:397:224:59
7:18
-0:10
25K
15.53 mi12:28:311:54:567:2418:17
7:32
+0:14
30K
18.64 mi12:53:002:19:257:2924:29
7:53
+0:21
20M
20.00 mi13:03:532:30:187:3110:53
8:01
+0:08
21M
21.00 mi13:12:202:38:457:348:27
8:27
+0:26
35K
21.75 mi13:18:002:44:257:345:40
7:34
-0:53
23M
23.00 mi13:27:562:54:217:359:56
7:56
+0:22
24M
24.00 mi13:35:463:02:117:357:50
7:50
-0:06
40K
24.85 mi13:42:383:09:037:366:52
8:02
+0:12
25.2M
25.20 mi13:45:423:12:077:373:04
8:54
+0:52
Finish
26.22 mi13:53:393:20:047:387:57
7:48
-1:06

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

7:14 /mi

Average Pace

7:38 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:36

60% of race

Time at Steady Pace

1:01:05

31% of race

Time at Slower Pace

18:23

9% of race

Average Pace: 7:38 /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 mi10:56:0422:297:1422:29
7:14
#9813
10K
6.21 mi11:19:1045:357:2023:06
7:26
#10647
15K
9.32 mi11:42:021:08:277:2122:52
7:22
#10597
20K
12.43 mi12:05:151:31:407:2323:13
7:28
#10552
Half
13.11 mi12:10:141:36:397:224:59
7:18
#10509
25K
15.53 mi12:28:311:54:567:2418:17
7:32
#10443
30K
18.64 mi12:53:002:19:257:2924:29
7:53
#10399
20M
20.00 mi13:03:532:30:187:3110:53
8:01
#10382
21M
21.00 mi13:12:202:38:457:348:27
8:27
#10325
35K
21.75 mi13:18:002:44:257:345:40
7:34
#10273
23M
23.00 mi13:27:562:54:217:359:56
7:56
#10197
24M
24.00 mi13:35:463:02:117:357:50
7:50
#10148
40K
24.85 mi13:42:383:09:037:366:52
8:02
#10137
25.2M
25.20 mi13:45:423:12:077:373:04
8:54
#10138
Finish
26.22 mi13:53:393:20:047:387:57
7:48
#10165
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi98131726172610510(Top 37%)2126(Top 17%)2126(Top 124%)
10K6.21 mi3.10 mi10647-8342135-4092135-40911517(Top 41%)2572(Top 21%)2572(Top 150%)
15K9.32 mi3.11 mi10597+502124+112124+1110510(Top 37%)2126(Top 17%)2126(Top 124%)
20K12.43 mi3.11 mi10552+452128-42128-410535(Top 37%)2230(Top 18%)2230(Top 130%)
Half13.11 mi0.68 mi10509+432106+222106+2210120(Top 36%)2026(Top 17%)2026(Top 118%)
25K15.53 mi2.42 mi10443+662103+32103+310315(Top 36%)2243(Top 18%)2243(Top 131%)
30K18.64 mi3.11 mi10399+442152-492152-4910501(Top 37%)2539(Top 21%)2539(Top 148%)
20M20.00 mi1.36 mi10382+172190-382190-3810519(Top 37%)2693(Top 22%)2693(Top 157%)
21M21.00 mi1.00 mi10325+572205-152205-1510173(Top 36%)2688(Top 22%)2688(Top 156%)
35K21.75 mi0.75 mi10273+522198+72198+79202(Top 32%)2224(Top 18%)2224(Top 129%)
23M23.00 mi1.25 mi10197+762209-112209-119550(Top 34%)2516(Top 21%)2516(Top 146%)
24M24.00 mi1.00 mi10148+492215-62215-610073(Top 35%)2837(Top 23%)2837(Top 165%)
40K24.85 mi0.85 mi10137+112250-352250-3510439(Top 37%)3139(Top 26%)3139(Top 183%)
25.2M25.20 mi0.35 mi10138-12263-132263-1311216(Top 39%)3590(Top 29%)3590(Top 209%)
Finish26.22 mi1.02 mi10165-272302-392302-3911464(Top 40%)3681(Top 30%)3681(Top 214%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10510

Females

2126

F40-44

2126

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

11517

Females

2572

F40-44

2572

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10510

Females

2126

F40-44

2126

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10535

Females

2230

F40-44

2230

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

10120

Females

2026

F40-44

2026

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10315

Females

2243

F40-44

2243

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10501

Females

2539

F40-44

2539

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

10519

Females

2693

F40-44

2693

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

10173

Females

2688

F40-44

2688

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9202

Females

2224

F40-44

2224

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9550

Females

2516

F40-44

2516

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

10073

Females

2837

F40-44

2837

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10439

Females

3139

F40-44

3139

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11216

Females

3590

F40-44

3590

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

11464

Females

3681

F40-44

3681

Passing Analysis

Category:
Athletes Passed
1686
Passed By
2035
Net Change
-352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9813
5K → 10K44876-834#9813#10647
10K → 15K189139+50#10647#10597
15K → 20K191146+45#10597#10552
20K → Half5815+43#10552#10509
Half → 25K188122+66#10509#10443
25K → 30K247202+44#10443#10399
30K → 20M127110+17#10399#10382
20M → 21M13780+57#10382#10325
21M → 35K8129+52#10325#10273
35K → 23M14064+76#10273#10197
23M → 24M10354+49#10197#10148
24M → 40K8675+11#10148#10137
40K → 25.2M2627-1#10137#10138
25.2M → Finish6996-27#10138#10165
TOTALS16862035-352
📊

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