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BOSTON MARATHON 2025

Kolton Klauer

Bib: 3802•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Division (M18-39)
#0 / 5642
Top 50%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:06
Rank: #3606
Start → 5K
20:06 | 6:28/mi
10K· 6.21 mi
40:19
Rank: #3692 (-86)
5K → 10K
20:13 | 6:30/mi
15K· 9.32 mi
1:00:40
Rank: #3756 (-64)
10K → 15K
20:21 | 6:33/mi
20K· 12.43 mi
1:21:54
Rank: #4089 (-333)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:26:26
Rank: #4109 (-20)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:42:57
Rank: #4198 (-89)
Half → 25K
16:31 | 6:49/mi
30K· 18.64 mi
2:04:45
Rank: #4247 (-49)
25K → 30K
21:48 | 7:01/mi
20M
2:14:22
Rank: #4243 (+4)
30K → 20M
9:37 | 7:05/mi
21M
2:21:58
Rank: #4268 (-25)
20M → 21M
7:36 | 7:36/mi
35K· 21.75 mi
2:27:00
Rank: #4238 (+30)
21M → 35K
5:02 | 6:44/mi
23M
2:35:58
Rank: #4246 (-8)
35K → 23M
8:58 | 7:10/mi
24M
2:43:01
Rank: #4242 (+4)
23M → 24M
7:03 | 7:03/mi
40K· 24.85 mi
2:49:08
Rank: #4249 (-7)
24M → 40K
6:07 | 7:09/mi
25.2M
2:51:52
Rank: #4273 (-24)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
2:58:38
Rank: #4229 (+44)
25.2M → Finish
6:46 | 6:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:26
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:32:12
Pace7:02 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1120:066:2820:06
6:28
-
10K
6.21 mi10:43:2440:196:2920:13
6:30
+0:02
15K
9.32 mi11:03:451:00:406:3120:21
6:33
+0:03
20K
12.43 mi11:24:591:21:546:3521:14
6:50
+0:17
Half
13.11 mi11:29:311:26:266:364:32
6:39
-0:11
25K
15.53 mi11:46:021:42:576:3816:31
6:49
+0:10
30K
18.64 mi12:07:502:04:456:4221:48
7:01
+0:12
20M
20.00 mi12:17:272:14:226:439:37
7:05
+0:04
21M
21.00 mi12:25:032:21:586:467:36
7:36
+0:31
35K
21.75 mi12:30:052:27:006:465:02
6:44
-0:52
23M
23.00 mi12:39:032:35:586:478:58
7:10
+0:26
24M
24.00 mi12:46:062:43:016:487:03
7:03
-0:07
40K
24.85 mi12:52:132:49:086:486:07
7:09
+0:06
25.2M
25.20 mi12:54:572:51:526:492:44
7:56
+0:47
Finish
26.22 mi13:01:432:58:386:496:46
6:38
-1:18

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

6:28 /mi

Average Pace

6:49 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:26

38% of race

Time at Steady Pace

1:09:07

39% of race

Time at Slower Pace

42:05

24% of race

Average Pace: 6:49 /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 mi10:23:1120:066:2820:06
6:28
#3606
10K
6.21 mi10:43:2440:196:2920:13
6:30
#3692
15K
9.32 mi11:03:451:00:406:3120:21
6:33
#3756
20K
12.43 mi11:24:591:21:546:3521:14
6:50
#4089
Half
13.11 mi11:29:311:26:266:364:32
6:39
#4109
25K
15.53 mi11:46:021:42:576:3816:31
6:49
#4198
30K
18.64 mi12:07:502:04:456:4221:48
7:01
#4247
20M
20.00 mi12:17:272:14:226:439:37
7:05
#4243
21M
21.00 mi12:25:032:21:586:467:36
7:36
#4268
35K
21.75 mi12:30:052:27:006:465:02
6:44
#4238
23M
23.00 mi12:39:032:35:586:478:58
7:10
#4246
24M
24.00 mi12:46:062:43:016:487:03
7:03
#4242
40K
24.85 mi12:52:132:49:086:486:07
7:09
#4249
25.2M
25.20 mi12:54:572:51:526:492:44
7:56
#4273
Finish
26.22 mi13:01:432:58:386:496:46
6:38
#4229
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3606342134213874(Top 14%)3654(Top 23%)3654(Top 65%)
10K6.21 mi3.10 mi3692-863498-773498-773771(Top 13%)3556(Top 22%)3556(Top 63%)
15K9.32 mi3.11 mi3756-643550-523550-523874(Top 14%)3654(Top 23%)3654(Top 65%)
20K12.43 mi3.11 mi4089-3333848-2983848-2985622(Top 20%)5125(Top 32%)5125(Top 91%)
Half13.11 mi0.68 mi4109-203865-173865-174744(Top 17%)4404(Top 27%)4404(Top 78%)
25K15.53 mi2.42 mi4198-893942-773942-774942(Top 17%)4536(Top 28%)4536(Top 80%)
30K18.64 mi3.11 mi4247-493976-343976-344780(Top 17%)4355(Top 27%)4355(Top 77%)
20M20.00 mi1.36 mi4243+43967+93967+94530(Top 16%)4114(Top 26%)4114(Top 73%)
21M21.00 mi1.00 mi4268-253975-83975-85097(Top 18%)4443(Top 28%)4443(Top 79%)
35K21.75 mi0.75 mi4238+303942+333942+333668(Top 13%)3315(Top 21%)3315(Top 59%)
23M23.00 mi1.25 mi4246-83944-23944-24641(Top 16%)4056(Top 25%)4056(Top 72%)
24M24.00 mi1.00 mi4242+43924+203924+204886(Top 17%)4174(Top 26%)4174(Top 74%)
40K24.85 mi0.85 mi4249-73922+23922+24754(Top 17%)4032(Top 25%)4032(Top 71%)
25.2M25.20 mi0.35 mi4273-243938-163938-165483(Top 19%)4401(Top 27%)4401(Top 78%)
Finish26.22 mi1.02 mi4229+443895+433895+433546(Top 12%)3093(Top 19%)3093(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3874

Males

3654

M18-39

3654

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3771

Males

3556

M18-39

3556

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3874

Males

3654

M18-39

3654

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5622

Males

5125

M18-39

5125

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4744

Males

4404

M18-39

4404

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4942

Males

4536

M18-39

4536

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4780

Males

4355

M18-39

4355

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4530

Males

4114

M18-39

4114

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

5097

Males

4443

M18-39

4443

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3668

Males

3315

M18-39

3315

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4641

Males

4056

M18-39

4056

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4886

Males

4174

M18-39

4174

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4754

Males

4032

M18-39

4032

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5483

Males

4401

M18-39

4401

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3546

Males

3093

M18-39

3093

Passing Analysis

Category:
Athletes Passed
845
Passed By
1468
Net Change
-623
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3606
5K → 10K92178-86#3606#3692
10K → 15K83147-64#3692#3756
15K → 20K31364-333#3756#4089
20K → Half1232-20#4089#4109
Half → 25K60149-89#4109#4198
25K → 30K124173-49#4198#4247
30K → 20M7571+4#4247#4243
20M → 21M6085-25#4243#4268
21M → 35K5828+30#4268#4238
35K → 23M6977-8#4238#4246
23M → 24M5854+4#4246#4242
24M → 40K4148-7#4242#4249
40K → 25.2M1438-24#4249#4273
25.2M → Finish6824+44#4273#4229
TOTALS8451468-623
📊

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