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BOSTON MARATHON 2025

John Krone

Bib: 4301•M

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:35
Rank: #7394
Start → 5K
21:35 | 6:57/mi
10K· 6.21 mi
43:20
Rank: #7676 (-282)
5K → 10K
21:45 | 7:00/mi
15K· 9.32 mi
1:05:05
Rank: #7639 (+37)
10K → 15K
21:45 | 7:00/mi
20K· 12.43 mi
1:26:37
Rank: #7286 (+353)
15K → 20K
21:32 | 6:56/mi
Half· 13.11 mi
1:31:17
Rank: #7245 (+41)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:48:09
Rank: #7011 (+234)
Half → 25K
16:52 | 6:57/mi
30K· 18.64 mi
2:10:09
Rank: #6545 (+466)
25K → 30K
22:00 | 7:05/mi
20M
2:19:43
Rank: #6292 (+253)
30K → 20M
9:34 | 7:02/mi
21M
2:27:00
Rank: #6095 (+197)
20M → 21M
7:17 | 7:17/mi
35K· 21.75 mi
2:32:04
Rank: #5983 (+112)
21M → 35K
5:04 | 6:46/mi
23M
2:40:47
Rank: #5745 (+238)
35K → 23M
8:43 | 6:58/mi
24M
2:47:28
Rank: #5549 (+196)
23M → 24M
6:41 | 6:41/mi
40K· 24.85 mi
2:53:06
Rank: #5379 (+170)
24M → 40K
5:38 | 6:35/mi
25.2M
2:55:37
Rank: #5297 (+82)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
3:02:11
Rank: #5156 (+141)
25.2M → Finish
6:34 | 6:27/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:31:17
Pace6:58 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:30:54
Pace6:56 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2121:356:5721:35
6:57
-
10K
6.21 mi10:46:0643:206:5821:45
7:00
+0:03
15K
9.32 mi11:07:511:05:056:5921:45
7:00
0:00
20K
12.43 mi11:29:231:26:376:5821:32
6:56
-0:04
Half
13.11 mi11:34:031:31:176:584:40
6:50
-0:06
25K
15.53 mi11:50:551:48:096:5816:52
6:57
+0:07
30K
18.64 mi12:12:552:10:096:5922:00
7:05
+0:08
20M
20.00 mi12:22:292:19:436:599:34
7:02
-0:03
21M
21.00 mi12:29:462:27:007:007:17
7:17
+0:15
35K
21.75 mi12:34:502:32:047:005:04
6:46
-0:31
23M
23.00 mi12:43:332:40:476:598:43
6:58
+0:12
24M
24.00 mi12:50:142:47:286:596:41
6:41
-0:17
40K
24.85 mi12:55:522:53:066:585:38
6:35
-0:06
25.2M
25.20 mi12:58:232:55:376:582:31
7:18
+0:43
Finish
26.22 mi13:04:573:02:116:576:34
6:27
-0:51

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

6:27 /mi

Average Pace

6:57 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:23

95% of race

Time at Steady Pace

9:48

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:57 /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 mi10:24:2121:356:5721:35
6:57
#7394
10K
6.21 mi10:46:0643:206:5821:45
7:00
#7676
15K
9.32 mi11:07:511:05:056:5921:45
7:00
#7639
20K
12.43 mi11:29:231:26:376:5821:32
6:56
#7286
Half
13.11 mi11:34:031:31:176:584:40
6:50
#7245
25K
15.53 mi11:50:551:48:096:5816:52
6:57
#7011
30K
18.64 mi12:12:552:10:096:5922:00
7:05
#6545
20M
20.00 mi12:22:292:19:436:599:34
7:02
#6292
21M
21.00 mi12:29:462:27:007:007:17
7:17
#6095
35K
21.75 mi12:34:502:32:047:005:04
6:46
#5983
23M
23.00 mi12:43:332:40:476:598:43
6:58
#5745
24M
24.00 mi12:50:142:47:286:596:41
6:41
#5549
40K
24.85 mi12:55:522:53:066:585:38
6:35
#5379
25.2M
25.20 mi12:58:232:55:376:582:31
7:18
#5297
Finish
26.22 mi13:04:573:02:116:576:34
6:27
#5156
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7394658865887625(Top 27%)6696(Top 42%)6696(Top 119%)
10K6.21 mi3.10 mi7676-2826775-1876775-1877907(Top 28%)6914(Top 43%)6914(Top 123%)
15K9.32 mi3.11 mi7639+376734+416734+417625(Top 27%)6696(Top 42%)6696(Top 119%)
20K12.43 mi3.11 mi7286+3536478+2566478+2566409(Top 23%)5749(Top 36%)5749(Top 102%)
Half13.11 mi0.68 mi7245+416447+316447+316405(Top 23%)5745(Top 36%)5745(Top 102%)
25K15.53 mi2.42 mi7011+2346264+1836264+1836011(Top 21%)5402(Top 34%)5402(Top 96%)
30K18.64 mi3.11 mi6545+4665871+3935871+3935202(Top 18%)4703(Top 29%)4703(Top 83%)
20M20.00 mi1.36 mi6292+2535654+2175654+2174336(Top 15%)3951(Top 25%)3951(Top 70%)
21M21.00 mi1.00 mi6095+1975477+1775477+1773548(Top 12%)3247(Top 20%)3247(Top 58%)
35K21.75 mi0.75 mi5983+1125382+955382+953930(Top 14%)3530(Top 22%)3530(Top 63%)
23M23.00 mi1.25 mi5745+2385184+1985184+1983535(Top 12%)3205(Top 20%)3205(Top 57%)
24M24.00 mi1.00 mi5549+1965018+1665018+1662902(Top 10%)2642(Top 16%)2642(Top 47%)
40K24.85 mi0.85 mi5379+1704875+1434875+1431936(Top 7%)1786(Top 11%)1786(Top 32%)
25.2M25.20 mi0.35 mi5297+824803+724803+722522(Top 9%)2256(Top 14%)2256(Top 40%)
Finish26.22 mi1.02 mi5156+1414678+1254678+1252528(Top 9%)2297(Top 14%)2297(Top 41%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7625

Males

6696

M18-39

6696

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7907

Males

6914

M18-39

6914

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7625

Males

6696

M18-39

6696

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6409

Males

5749

M18-39

5749

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6405

Males

5745

M18-39

5745

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

6011

Males

5402

M18-39

5402

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5202

Males

4703

M18-39

4703

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4336

Males

3951

M18-39

3951

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3548

Males

3247

M18-39

3247

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3930

Males

3530

M18-39

3530

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3535

Males

3205

M18-39

3205

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2902

Males

2642

M18-39

2642

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1936

Males

1786

M18-39

1786

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2522

Males

2256

M18-39

2256

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2528

Males

2297

M18-39

2297

Passing Analysis

Category:
Athletes Passed
2799
Passed By
561
Net Change
+2238
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7394
5K → 10K106388-282#7394#7676
10K → 15K151114+37#7676#7639
15K → 20K3607+353#7639#7286
20K → Half476+41#7286#7245
Half → 25K24713+234#7245#7011
25K → 30K48216+466#7011#6545
30K → 20M2563+253#6545#6292
20M → 21M2003+197#6292#6095
21M → 35K1153+112#6095#5983
35K → 23M2402+238#5983#5745
23M → 24M1971+196#5745#5549
24M → 40K1722+170#5549#5379
40K → 25.2M820+82#5379#5297
25.2M → Finish1443+141#5297#5156
TOTALS2799561+2238
📊

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