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BOSTON MARATHON 2025

Kaarli Eichhorn

Bib: 26344•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:41
Rank: #13315
Start → 5K
23:41 | 7:37/mi
10K· 6.21 mi
47:56
Rank: #14021 (-706)
5K → 10K
24:15 | 7:48/mi
15K· 9.32 mi
1:13:17
Rank: #15183 (-1162)
10K → 15K
25:21 | 8:10/mi
20K· 12.43 mi
1:39:18
Rank: #15846 (-663)
15K → 20K
26:01 | 8:22/mi
Half· 13.11 mi
1:44:50
Rank: #15891 (-45)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:05:38
Rank: #16224 (-333)
Half → 25K
20:48 | 8:35/mi
30K· 18.64 mi
2:33:27
Rank: #16413 (-189)
25K → 30K
27:49 | 8:57/mi
20M
2:45:49
Rank: #16446 (-33)
30K → 20M
12:22 | 9:06/mi
21M
2:55:25
Rank: #16402 (+44)
20M → 21M
9:36 | 9:36/mi
35K· 21.75 mi
3:01:53
Rank: #16373 (+29)
21M → 35K
6:28 | 8:39/mi
23M
3:13:14
Rank: #16344 (+29)
35K → 23M
11:21 | 9:04/mi
24M
3:22:05
Rank: #16337 (+7)
23M → 24M
8:51 | 8:51/mi
40K· 24.85 mi
3:30:05
Rank: #16411 (-74)
24M → 40K
8:00 | 9:21/mi
25.2M
3:33:30
Rank: #16420 (-9)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:41:52
Rank: #16331 (+89)
25.2M → Finish
8:22 | 8:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:50
Pace8:00 /mi
2nd Half
Distance13.11 mi
Time1:57:02
Pace8:56 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:38:4923:417:3723:41
7:37
-
10K
6.21 mi12:03:0447:567:4324:15
7:48
+0:11
15K
9.32 mi12:28:251:13:177:5225:21
8:10
+0:22
20K
12.43 mi12:54:261:39:187:5926:01
8:22
+0:12
Half
13.11 mi12:59:581:44:508:005:32
8:07
-0:15
25K
15.53 mi13:20:462:05:388:0520:48
8:35
+0:28
30K
18.64 mi13:48:352:33:278:1427:49
8:57
+0:22
20M
20.00 mi14:00:572:45:498:1712:22
9:06
+0:09
21M
21.00 mi14:10:332:55:258:219:36
9:36
+0:30
35K
21.75 mi14:17:013:01:538:226:28
8:39
-0:57
23M
23.00 mi14:28:223:13:148:2411:21
9:04
+0:25
24M
24.00 mi14:37:133:22:058:258:51
8:51
-0:13
40K
24.85 mi14:45:133:30:058:278:00
9:21
+0:30
25.2M
25.20 mi14:48:383:33:308:283:25
9:54
+0:33
Finish
26.22 mi14:57:003:41:528:288:22
8:13
-1:41

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

7:37 /mi

Average Pace

8:28 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:11

39% of race

Time at Steady Pace

1:29:57

41% of race

Time at Slower Pace

44:44

20% of race

Average Pace: 8:28 /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 mi11:38:4923:417:3723:41
7:37
#13315
10K
6.21 mi12:03:0447:567:4324:15
7:48
#14021
15K
9.32 mi12:28:251:13:177:5225:21
8:10
#15183
20K
12.43 mi12:54:261:39:187:5926:01
8:22
#15846
Half
13.11 mi12:59:581:44:508:005:32
8:07
#15891
25K
15.53 mi13:20:462:05:388:0520:48
8:35
#16224
30K
18.64 mi13:48:352:33:278:1427:49
8:57
#16413
20M
20.00 mi14:00:572:45:498:1712:22
9:06
#16446
21M
21.00 mi14:10:332:55:258:219:36
9:36
#16402
35K
21.75 mi14:17:013:01:538:226:28
8:39
#16373
23M
23.00 mi14:28:223:13:148:2411:21
9:04
#16344
24M
24.00 mi14:37:133:22:058:258:51
8:51
#16337
40K
24.85 mi14:45:133:30:058:278:00
9:21
#16411
25.2M
25.20 mi14:48:383:33:308:283:25
9:54
#16420
Finish
26.22 mi14:57:003:41:528:288:22
8:13
#16331
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi133159782978217129(Top 60%)11269(Top 70%)11269(Top 472%)
10K6.21 mi3.10 mi14021-70610027-24510027-24514853(Top 52%)10359(Top 64%)10359(Top 434%)
15K9.32 mi3.11 mi15183-116210470-44310470-44317129(Top 60%)11269(Top 70%)11269(Top 472%)
20K12.43 mi3.11 mi15846-66310739-26910739-26917374(Top 61%)11333(Top 70%)11333(Top 475%)
Half13.11 mi0.68 mi15891-4510756-1710756-1716640(Top 59%)11035(Top 69%)11035(Top 462%)
25K15.53 mi2.42 mi16224-33310883-12710883-12717657(Top 62%)11380(Top 71%)11380(Top 477%)
30K18.64 mi3.11 mi16413-18910888-510888-517427(Top 61%)11116(Top 69%)11116(Top 466%)
20M20.00 mi1.36 mi16446-3310872+1610872+1617297(Top 61%)10942(Top 68%)10942(Top 459%)
21M21.00 mi1.00 mi16402+4410827+4510827+4516522(Top 58%)10481(Top 65%)10481(Top 439%)
35K21.75 mi0.75 mi16373+2910803+2410803+2416298(Top 57%)10307(Top 64%)10307(Top 432%)
23M23.00 mi1.25 mi16344+2910759+4410759+4416610(Top 58%)10334(Top 64%)10334(Top 433%)
24M24.00 mi1.00 mi16337+710725+3410725+3416570(Top 58%)10285(Top 64%)10285(Top 431%)
40K24.85 mi0.85 mi16411-7410728-310728-318079(Top 64%)10868(Top 67%)10868(Top 455%)
25.2M25.20 mi0.35 mi16420-910724+410724+416559(Top 58%)10152(Top 63%)10152(Top 425%)
Finish26.22 mi1.02 mi16331+8910663+6110663+6114321(Top 50%)9175(Top 57%)9175(Top 385%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

17129

Males

11269

M45-49

11269

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

14853

Males

10359

M45-49

10359

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

17129

Males

11269

M45-49

11269

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17374

Males

11333

M45-49

11333

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16640

Males

11035

M45-49

11035

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17657

Males

11380

M45-49

11380

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

17427

Males

11116

M45-49

11116

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17297

Males

10942

M45-49

10942

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

16522

Males

10481

M45-49

10481

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

16298

Males

10307

M45-49

10307

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

16610

Males

10334

M45-49

10334

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16570

Males

10285

M45-49

10285

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18079

Males

10868

M45-49

10868

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16559

Males

10152

M45-49

10152

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

14321

Males

9175

M45-49

9175

Passing Analysis

Category:
Athletes Passed
1182
Passed By
4198
Net Change
-3016
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13315
5K → 10K87793-706#13315#14021
10K → 15K341196-1162#14021#15183
15K → 20K69732-663#15183#15846
20K → Half2570-45#15846#15891
Half → 25K85418-333#15891#16224
25K → 30K173362-189#16224#16413
30K → 20M98131-33#16413#16446
20M → 21M12884+44#16446#16402
21M → 35K7748+29#16402#16373
35K → 23M12394+29#16373#16344
23M → 24M8982+7#16344#16337
24M → 40K47121-74#16337#16411
40K → 25.2M2534-9#16411#16420
25.2M → Finish12233+89#16420#16331
TOTALS11824198-3016
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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