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BOSTON MARATHON 2025

Lukas Harrison

Bib: 5451•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
Gender (Male)
#0 / 16105
Top 21%
Division (M18-39)
#0 / 5642
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:48
Rank: #5393
Start → 5K
20:48 | 6:42/mi
10K· 6.21 mi
41:27
Rank: #5108 (+285)
5K → 10K
20:39 | 6:39/mi
15K· 9.32 mi
1:02:20
Rank: #5136 (-28)
10K → 15K
20:53 | 6:43/mi
20K· 12.43 mi
1:23:17
Rank: #5009 (+127)
15K → 20K
20:57 | 6:45/mi
Half· 13.11 mi
1:27:49
Rank: #4989 (+20)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:05
Rank: #4801 (+188)
Half → 25K
16:16 | 6:43/mi
30K· 18.64 mi
2:05:02
Rank: #4372 (+429)
25K → 30K
20:57 | 6:45/mi
20M
2:14:18
Rank: #4220 (+152)
30K → 20M
9:16 | 6:49/mi
21M
2:21:18
Rank: #4055 (+165)
20M → 21M
7:00 | 7:00/mi
35K· 21.75 mi
2:26:15
Rank: #3995 (+60)
21M → 35K
4:57 | 6:37/mi
23M
2:34:47
Rank: #3876 (+119)
35K → 23M
8:32 | 6:49/mi
24M
2:41:30
Rank: #3810 (+66)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:47:12
Rank: #3710 (+100)
24M → 40K
5:42 | 6:40/mi
25.2M
2:49:45
Rank: #3667 (+43)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:56:20
Rank: #3576 (+91)
25.2M → Finish
6:35 | 6:28/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:27:49
Pace6:42 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:28:31
Pace6:45 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2320:486:4220:48
6:42
-
10K
6.21 mi10:46:0241:276:4020:39
6:39
-0:03
15K
9.32 mi11:06:551:02:206:4120:53
6:43
+0:04
20K
12.43 mi11:27:521:23:176:4220:57
6:45
+0:02
Half
13.11 mi11:32:241:27:496:424:32
6:39
-0:06
25K
15.53 mi11:48:401:44:056:4216:16
6:43
+0:04
30K
18.64 mi12:09:372:05:026:4220:57
6:45
+0:02
20M
20.00 mi12:18:532:14:186:439:16
6:49
+0:04
21M
21.00 mi12:25:532:21:186:447:00
7:00
+0:11
35K
21.75 mi12:30:502:26:156:434:57
6:37
-0:23
23M
23.00 mi12:39:222:34:476:448:32
6:49
+0:12
24M
24.00 mi12:46:052:41:306:446:43
6:43
-0:06
40K
24.85 mi12:51:472:47:126:445:42
6:40
-0:03
25.2M
25.20 mi12:54:202:49:456:442:33
7:24
+0:44
Finish
26.22 mi13:00:552:56:206:446:35
6:28
-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

6:28 /mi

Average Pace

6:44 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:47

99% of race

Time at Steady Pace

2:33

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:44 /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 mi10:25:2320:486:4220:48
6:42
#5393
10K
6.21 mi10:46:0241:276:4020:39
6:39
#5108
15K
9.32 mi11:06:551:02:206:4120:53
6:43
#5136
20K
12.43 mi11:27:521:23:176:4220:57
6:45
#5009
Half
13.11 mi11:32:241:27:496:424:32
6:39
#4989
25K
15.53 mi11:48:401:44:056:4216:16
6:43
#4801
30K
18.64 mi12:09:372:05:026:4220:57
6:45
#4372
20M
20.00 mi12:18:532:14:186:439:16
6:49
#4220
21M
21.00 mi12:25:532:21:186:447:00
7:00
#4055
35K
21.75 mi12:30:502:26:156:434:57
6:37
#3995
23M
23.00 mi12:39:222:34:476:448:32
6:49
#3876
24M
24.00 mi12:46:052:41:306:446:43
6:43
#3810
40K
24.85 mi12:51:472:47:126:445:42
6:40
#3710
25.2M
25.20 mi12:54:202:49:456:442:33
7:24
#3667
Finish
26.22 mi13:00:552:56:206:446:35
6:28
#3576
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5393501050105282(Top 19%)4881(Top 30%)4881(Top 87%)
10K6.21 mi3.10 mi5108+2854760+2504760+2504846(Top 17%)4529(Top 28%)4529(Top 80%)
15K9.32 mi3.11 mi5136-284780-204780-205282(Top 19%)4881(Top 30%)4881(Top 87%)
20K12.43 mi3.11 mi5009+1274663+1174663+1174804(Top 17%)4447(Top 28%)4447(Top 79%)
Half13.11 mi0.68 mi4989+204641+224641+224818(Top 17%)4478(Top 28%)4478(Top 79%)
25K15.53 mi2.42 mi4801+1884466+1754466+1754217(Top 15%)3919(Top 24%)3919(Top 69%)
30K18.64 mi3.11 mi4372+4294090+3764090+3763119(Top 11%)2928(Top 18%)2928(Top 52%)
20M20.00 mi1.36 mi4220+1523947+1433947+1433066(Top 11%)2856(Top 18%)2856(Top 51%)
21M21.00 mi1.00 mi4055+1653797+1503797+1502277(Top 8%)2128(Top 13%)2128(Top 38%)
35K21.75 mi0.75 mi3995+603735+623735+623077(Top 11%)2832(Top 18%)2832(Top 50%)
23M23.00 mi1.25 mi3876+1193620+1153620+1152798(Top 10%)2572(Top 16%)2572(Top 46%)
24M24.00 mi1.00 mi3810+663557+633557+633079(Top 11%)2792(Top 17%)2792(Top 49%)
40K24.85 mi0.85 mi3710+1003463+943463+942259(Top 8%)2074(Top 13%)2074(Top 37%)
25.2M25.20 mi0.35 mi3667+433421+423421+422973(Top 10%)2652(Top 16%)2652(Top 47%)
Finish26.22 mi1.02 mi3576+913336+853336+852640(Top 9%)2390(Top 15%)2390(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5282

Males

4881

M18-39

4881

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4846

Males

4529

M18-39

4529

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5282

Males

4881

M18-39

4881

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4804

Males

4447

M18-39

4447

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4818

Males

4478

M18-39

4478

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4217

Males

3919

M18-39

3919

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3119

Males

2928

M18-39

2928

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3066

Males

2856

M18-39

2856

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2277

Males

2128

M18-39

2128

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3077

Males

2832

M18-39

2832

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2798

Males

2572

M18-39

2572

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3079

Males

2792

M18-39

2792

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2259

Males

2074

M18-39

2074

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2973

Males

2652

M18-39

2652

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2640

Males

2390

M18-39

2390

Passing Analysis

Category:
Athletes Passed
2210
Passed By
393
Net Change
+1817
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5393
5K → 10K35570+285#5393#5108
10K → 15K124152-28#5108#5136
15K → 20K18457+127#5136#5009
20K → Half3616+20#5009#4989
Half → 25K20214+188#4989#4801
25K → 30K4345+429#4801#4372
30K → 20M16210+152#4372#4220
20M → 21M1672+165#4220#4055
21M → 35K7717+60#4055#3995
35K → 23M13213+119#3995#3876
23M → 24M8216+66#3876#3810
24M → 40K1066+100#3810#3710
40K → 25.2M496+43#3710#3667
25.2M → Finish1009+91#3667#3576
TOTALS2210393+1817
📊

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