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BOSTON MARATHON 2025

Morgan Diefendorf

Bib: 13240•F

NM

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 25%
Gender (Female)
#0 / 12228
Top 9%
Division (F18-39)
#0 / 5469
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:27
Rank: #4465
Start → 5K
6:35/mi
20:27 split
10K· 6.21 mi
41:09
Rank: #4690 (-225)
5K → 10K
6:40/mi
20:42 split
15K· 9.32 mi
1:01:54
Rank: #4735 (-45)
10K → 15K
6:41/mi
20:45 split
20K· 12.43 mi
1:23:24
Rank: #5098 (-363)
15K → 20K
6:55/mi
21:30 split
Half· 13.11 mi
1:28:11
Rank: #5247 (-149)
20K → Half
7:01/mi
4:47 split
25K· 15.53 mi
1:46:18
Rank: #6109 (-862)
Half → 25K
7:28/mi
18:07 split
30K· 18.64 mi
2:09:43
Rank: #6390 (-281)
25K → 30K
7:32/mi
23:25 split
20M
2:20:18
Rank: #6486 (-96)
30K → 20M
7:47/mi
10:35 split
21M
2:28:56
Rank: #6651 (-165)
20M → 21M
8:38/mi
8:38 split
35K· 21.75 mi
2:35:24
Rank: #6970 (-319)
21M → 35K
8:39/mi
6:28 split
23M
2:45:51
Rank: #7174 (-204)
35K → 23M
8:21/mi
10:27 split
24M
2:53:40
Rank: #7243 (-69)
23M → 24M
7:49/mi
7:49 split
40K· 24.85 mi
3:00:21
Rank: #7267 (-24)
24M → 40K
7:49/mi
6:41 split
25.2M
3:03:12
Rank: #7251 (+16)
40K → 25.2M
8:16/mi
2:51 split
Finish· 26.22 mi
3:10:40
Rank: #7244 (+7)
25.2M → Finish
7:20/mi
7:28 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:11
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:42:29
Pace7:49 /mi
📊Positive Split: 16.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4520:276:3520:27
6:35
-
10K
6.21 mi11:10:2741:096:3720:42
6:40
+0:05
15K
9.32 mi11:31:121:01:546:3820:45
6:41
+0:01
20K
12.43 mi11:52:421:23:246:4321:30
6:55
+0:14
Half
13.11 mi11:57:291:28:116:444:47
7:01
+0:06
25K
15.53 mi12:15:361:46:186:5118:07
7:28
+0:27
30K
18.64 mi12:39:012:09:436:5823:25
7:32
+0:04
20M
20.00 mi12:49:362:20:187:0110:35
7:47
+0:15
21M
21.00 mi12:58:142:28:567:068:38
8:38
+0:51
35K
21.75 mi13:04:422:35:247:096:28
8:39
+0:01
23M
23.00 mi13:15:092:45:517:1310:27
8:21
-0:18
24M
24.00 mi13:22:582:53:407:147:49
7:49
-0:32
40K
24.85 mi13:29:393:00:217:156:41
7:49
0:00
25.2M
25.20 mi13:32:303:03:127:162:51
8:16
+0:27
Finish
26.22 mi13:39:583:10:407:177:28
7:20
-0:56

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

6:35 /mi

Average Pace

7:17 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:11

46% of race

Time at Steady Pace

1:14:05

39% of race

Time at Slower Pace

28:24

15% of race

Average Pace: 7:16 /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 mi10:49:4520:276:3520:27
6:35
#4465
10K
6.21 mi11:10:2741:096:3720:42
6:40
#4690
15K
9.32 mi11:31:121:01:546:3820:45
6:41
#4735
20K
12.43 mi11:52:421:23:246:4321:30
6:55
#5098
Half
13.11 mi11:57:291:28:116:444:47
7:01
#5247
25K
15.53 mi12:15:361:46:186:5118:07
7:28
#6109
30K
18.64 mi12:39:012:09:436:5823:25
7:32
#6390
20M
20.00 mi12:49:362:20:187:0110:35
7:47
#6486
21M
21.00 mi12:58:142:28:567:068:38
8:38
#6651
35K
21.75 mi13:04:422:35:247:096:28
8:39
#6970
23M
23.00 mi13:15:092:45:517:1310:27
8:21
#7174
24M
24.00 mi13:22:582:53:407:147:49
7:49
#7243
40K
24.85 mi13:29:393:00:217:156:41
7:49
#7267
25.2M
25.20 mi13:32:303:03:127:162:51
8:16
#7251
Finish
26.22 mi13:39:583:10:407:177:28
7:20
#7244
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi44652612614906(Top 17%)328(Top 3%)328(Top 6%)
10K6.21 mi3.10 mi4690-225288-27288-275027(Top 18%)332(Top 3%)332(Top 6%)
15K9.32 mi3.11 mi4735-45296-8296-84906(Top 17%)328(Top 3%)328(Top 6%)
20K12.43 mi3.11 mi5098-363355-59355-596366(Top 22%)637(Top 5%)637(Top 12%)
Half13.11 mi0.68 mi5247-149379-24379-247726(Top 27%)987(Top 8%)987(Top 18%)
25K15.53 mi2.42 mi6109-862551-172551-1729731(Top 34%)1980(Top 16%)1980(Top 36%)
30K18.64 mi3.11 mi6390-281629-78629-788010(Top 28%)1392(Top 11%)1392(Top 25%)
20M20.00 mi1.36 mi6486-96670-41670-418948(Top 32%)1955(Top 16%)1955(Top 36%)
21M21.00 mi1.00 mi6651-165736-66736-6611286(Top 40%)3228(Top 26%)3228(Top 59%)
35K21.75 mi0.75 mi6970-319835-99835-9916330(Top 57%)5950(Top 49%)5950(Top 109%)
23M23.00 mi1.25 mi7174-204948-113948-11312319(Top 43%)3902(Top 32%)3902(Top 71%)
24M24.00 mi1.00 mi7243-691000-521000-529936(Top 35%)2766(Top 23%)2766(Top 51%)
40K24.85 mi0.85 mi7267-241036-361036-368897(Top 31%)2394(Top 20%)2394(Top 44%)
25.2M25.20 mi0.35 mi7251+161047-111047-117487(Top 26%)1827(Top 15%)1827(Top 33%)
Finish26.22 mi1.02 mi7244+71067-201067-207973(Top 28%)2048(Top 17%)2048(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21story building
+97ft-345ft

Overall

4906

Females

328

F18-39

328

5K→10K

3.1 - 6.2 mi

Top 18%
×5story building
+79ft-138ft

Overall

5027

Females

332

F18-39

332

10K→15K

6.2 - 9.3 mi

Top 17%
×3story building
+67ft-78ft

Overall

4906

Females

328

F18-39

328

15K→20K

9.3 - 12.4 mi

Top 22%
×5story building
+106ft-86ft

Overall

6366

Females

637

F18-39

637

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7726

Females

987

F18-39

987

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9731

Females

1980

F18-39

1980

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

8010

Females

1392

F18-39

1392

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8948

Females

1955

F18-39

1955

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11286

Females

3228

F18-39

3228

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16330

Females

5950

F18-39

5950

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

12319

Females

3902

F18-39

3902

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9936

Females

2766

F18-39

2766

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8897

Females

2394

F18-39

2394

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7487

Females

1827

F18-39

1827

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

7973

Females

2048

F18-39

2048

Passing Analysis

Category:
Athletes Passed
693
Passed By
3472
Net Change
-2779
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4465
5K → 10K82307-225#4465#4690
10K → 15K107152-45#4690#4735
15K → 20K50413-363#4735#5098
20K → Half4153-149#5098#5247
Half → 25K17879-862#5247#6109
25K → 30K95376-281#6109#6390
30K → 20M64160-96#6390#6486
20M → 21M24189-165#6486#6651
21M → 35K7326-319#6651#6970
35K → 23M37241-204#6970#7174
23M → 24M56125-69#7174#7243
24M → 40K5175-24#7243#7267
40K → 25.2M3822+16#7267#7251
25.2M → Finish6154+7#7251#7244
TOTALS6933472-2779
📊

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