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BOSTON MARATHON 2025

Stefanie Kluepfel

Bib: 15975•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Masters (Masters Women)
#0 / 6759
Top 33%
Division (F45-49)
#0 / 1813
Top 40%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:15
Rank: #12114
Start → 5K
23:15 | 7:29/mi
10K· 6.21 mi
46:43
Rank: #12306 (-192)
5K → 10K
23:28 | 7:33/mi
15K· 9.32 mi
1:10:38
Rank: #12683 (-377)
10K → 15K
23:55 | 7:42/mi
20K· 12.43 mi
1:35:11
Rank: #13007 (-324)
15K → 20K
24:33 | 7:54/mi
Half· 13.11 mi
1:40:33
Rank: #13108 (-101)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:00:14
Rank: #13358 (-250)
Half → 25K
19:41 | 8:07/mi
30K· 18.64 mi
2:29:45
Rank: #14993 (-1635)
25K → 30K
29:31 | 9:30/mi
20M
2:42:05
Rank: #15177 (-184)
30K → 20M
12:20 | 9:05/mi
21M
2:53:50
Rank: #15937 (-760)
20M → 21M
11:45 | 11:45/mi
35K· 21.75 mi
3:00:46
Rank: #16061 (-124)
21M → 35K
6:56 | 9:16/mi
23M
3:13:04
Rank: #16298 (-237)
35K → 23M
12:18 | 9:49/mi
24M
3:21:57
Rank: #16296 (+2)
23M → 24M
8:53 | 8:53/mi
40K· 24.85 mi
3:30:06
Rank: #16420 (-124)
24M → 40K
8:09 | 9:32/mi
25.2M
3:33:16
Rank: #16362 (+58)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:41:23
Rank: #16225 (+137)
25.2M → Finish
8:07 | 7:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:33
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time2:00:50
Pace9:13 /mi
📊Positive Split: 20.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1923:157:2923:15
7:29
-
10K
6.21 mi11:17:4746:437:3123:28
7:33
+0:04
15K
9.32 mi11:41:421:10:387:3523:55
7:42
+0:09
20K
12.43 mi12:06:151:35:117:4024:33
7:54
+0:12
Half
13.11 mi12:11:371:40:337:405:22
7:52
-0:02
25K
15.53 mi12:31:182:00:147:4419:41
8:07
+0:15
30K
18.64 mi13:00:492:29:458:0229:31
9:30
+1:23
20M
20.00 mi13:13:092:42:058:0612:20
9:05
-0:25
21M
21.00 mi13:24:542:53:508:1711:45
11:45
+2:40
35K
21.75 mi13:31:503:00:468:196:56
9:16
-2:29
23M
23.00 mi13:44:083:13:048:2412:18
9:49
+0:33
24M
24.00 mi13:53:013:21:578:258:53
8:53
-0:56
40K
24.85 mi14:01:103:30:068:278:09
9:32
+0:39
25.2M
25.20 mi14:04:203:33:168:283:10
9:11
-0:21
Finish
26.22 mi14:12:273:41:238:278:07
7:58
-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

7:29 /mi

Average Pace

8:27 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:21

58% of race

Time at Steady Pace

31:19

14% of race

Time at Slower Pace

1:01:43

28% of race

Average Pace: 8:27 /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 mi10:54:1923:157:2923:15
7:29
#12114
10K
6.21 mi11:17:4746:437:3123:28
7:33
#12306
15K
9.32 mi11:41:421:10:387:3523:55
7:42
#12683
20K
12.43 mi12:06:151:35:117:4024:33
7:54
#13007
Half
13.11 mi12:11:371:40:337:405:22
7:52
#13108
25K
15.53 mi12:31:182:00:147:4419:41
8:07
#13358
30K
18.64 mi13:00:492:29:458:0229:31
9:30
#14993
20M
20.00 mi13:13:092:42:058:0612:20
9:05
#15177
21M
21.00 mi13:24:542:53:508:1711:45
11:45
#15937
35K
21.75 mi13:31:503:00:468:196:56
9:16
#16061
23M
23.00 mi13:44:083:13:048:2412:18
9:49
#16298
24M
24.00 mi13:53:013:21:578:258:53
8:53
#16296
40K
24.85 mi14:01:103:30:068:278:09
9:32
#16420
25.2M
25.20 mi14:04:203:33:168:283:10
9:11
#16362
Finish
26.22 mi14:12:273:41:238:278:07
7:58
#16225
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi121142863286313505(Top 48%)3743(Top 31%)3743(Top 206%)
10K6.21 mi3.10 mi12306-1922964-1012964-10112619(Top 44%)3161(Top 26%)3161(Top 174%)
15K9.32 mi3.11 mi12683-3773199-2353199-23513505(Top 48%)3743(Top 31%)3743(Top 206%)
20K12.43 mi3.11 mi13007-3243452-2533452-25314125(Top 50%)4170(Top 34%)4170(Top 230%)
Half13.11 mi0.68 mi13108-1013509-573509-5714894(Top 52%)4572(Top 37%)4572(Top 252%)
25K15.53 mi2.42 mi13358-2503690-1813690-18114779(Top 52%)4635(Top 38%)4635(Top 256%)
30K18.64 mi3.11 mi14993-16354665-9754665-97519946(Top 70%)7633(Top 62%)7633(Top 421%)
20M20.00 mi1.36 mi15177-1844800-1354800-13517206(Top 61%)6254(Top 51%)6254(Top 345%)
21M21.00 mi1.00 mi15937-7605268-4685268-46823125(Top 81%)9552(Top 78%)9552(Top 527%)
35K21.75 mi0.75 mi16061-1245358-905358-9019456(Top 68%)7688(Top 63%)7688(Top 424%)
23M23.00 mi1.25 mi16298-2375515-1575515-15719878(Top 70%)7982(Top 65%)7982(Top 440%)
24M24.00 mi1.00 mi16296+25547-325547-3216767(Top 59%)6357(Top 52%)6357(Top 351%)
40K24.85 mi0.85 mi16420-1245645-985645-9818847(Top 66%)7547(Top 62%)7547(Top 416%)
25.2M25.20 mi0.35 mi16362+585621+245621+2412916(Top 45%)4474(Top 37%)4474(Top 247%)
Finish26.22 mi1.02 mi16225+1375556+655556+6512698(Top 45%)4291(Top 35%)4291(Top 237%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

13505

Females

3743

F45-49

3743

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

12619

Females

3161

F45-49

3161

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

13505

Females

3743

F45-49

3743

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

14125

Females

4170

F45-49

4170

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14894

Females

4572

F45-49

4572

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

14779

Females

4635

F45-49

4635

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

19946

Females

7633

F45-49

7633

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17206

Females

6254

F45-49

6254

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

23125

Females

9552

F45-49

9552

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

19456

Females

7688

F45-49

7688

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19878

Females

7982

F45-49

7982

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16767

Females

6357

F45-49

6357

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18847

Females

7547

F45-49

7547

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12916

Females

4474

F45-49

4474

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

12698

Females

4291

F45-49

4291

Passing Analysis

Category:
Athletes Passed
1045
Passed By
5156
Net Change
-4111
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12114
5K → 10K182374-192#12114#12306
10K → 15K75452-377#12306#12683
15K → 20K114438-324#12683#13007
20K → Half14115-101#13007#13108
Half → 25K100350-250#13108#13358
25K → 30K361671-1635#13358#14993
30K → 20M77261-184#14993#15177
20M → 21M12772-760#15177#15937
21M → 35K38162-124#15937#16061
35K → 23M56293-237#16061#16298
23M → 24M7977+2#16298#16296
24M → 40K35159-124#16296#16420
40K → 25.2M6810+58#16420#16362
25.2M → Finish15922+137#16362#16225
TOTALS10455156-4111
📊

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