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BOSTON MARATHON 2025

Liam Hartsuff

Bib: 2836•M

MI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 8%
Division (M18-39)
#0 / 5642
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:59
Rank: #3321
Start → 5K
19:59 | 6:26/mi
10K· 6.21 mi
39:45
Rank: #3035 (+286)
5K → 10K
19:46 | 6:22/mi
15K· 9.32 mi
59:57
Rank: #3218 (-183)
10K → 15K
20:12 | 6:30/mi
20K· 12.43 mi
1:19:55
Rank: #3040 (+178)
15K → 20K
19:58 | 6:26/mi
Half· 13.11 mi
1:24:12
Rank: #3005 (+35)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:38:58
Rank: #2578 (+427)
Half → 25K
14:46 | 6:05/mi
30K· 18.64 mi
1:57:57
Rank: #2078 (+500)
25K → 30K
18:59 | 6:07/mi
20M
2:06:16
Rank: #1894 (+184)
30K → 20M
8:19 | 6:07/mi
21M
2:12:36
Rank: #1732 (+162)
20M → 21M
6:20 | 6:20/mi
35K· 21.75 mi
2:17:01
Rank: #1660 (+72)
21M → 35K
4:25 | 5:54/mi
23M
2:24:42
Rank: #1513 (+147)
35K → 23M
7:41 | 6:08/mi
24M
2:30:49
Rank: #1436 (+77)
23M → 24M
6:07 | 6:07/mi
40K· 24.85 mi
2:35:56
Rank: #1357 (+79)
24M → 40K
5:07 | 5:59/mi
25.2M
2:38:14
Rank: #1343 (+14)
40K → 25.2M
2:18 | 6:40/mi
Finish· 26.22 mi
2:44:23
Rank: #1305 (+38)
25.2M → Finish
6:09 | 6:02/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:24:12
Pace6:25 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:20:11
Pace6:07 /mi
📊Negative Split: 4.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1819:596:2619:59
6:26
-
10K
6.21 mi10:41:0439:456:2419:46
6:22
-0:04
15K
9.32 mi11:01:1659:576:2620:12
6:30
+0:08
20K
12.43 mi11:21:141:19:556:2619:58
6:26
-0:04
Half
13.11 mi11:25:311:24:126:254:17
6:17
-0:09
25K
15.53 mi11:40:171:38:586:2214:46
6:05
-0:12
30K
18.64 mi11:59:161:57:576:2018:59
6:07
+0:02
20M
20.00 mi12:07:352:06:166:198:19
6:07
0:00
21M
21.00 mi12:13:552:12:366:196:20
6:20
+0:13
35K
21.75 mi12:18:202:17:016:184:25
5:54
-0:26
23M
23.00 mi12:26:012:24:426:177:41
6:08
+0:14
24M
24.00 mi12:32:082:30:496:176:07
6:07
-0:01
40K
24.85 mi12:37:152:35:566:165:07
5:59
-0:08
25.2M
25.20 mi12:39:332:38:146:172:18
6:40
+0:41
Finish
26.22 mi12:45:422:44:236:166:09
6:02
-0:38

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

5:54 /mi

Average Pace

6:16 /mi

Slowest Pace

6:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:53

86% of race

Time at Steady Pace

22:30

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:16 /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 mi10:21:1819:596:2619:59
6:26
#3321
10K
6.21 mi10:41:0439:456:2419:46
6:22
#3035
15K
9.32 mi11:01:1659:576:2620:12
6:30
#3218
20K
12.43 mi11:21:141:19:556:2619:58
6:26
#3040
Half
13.11 mi11:25:311:24:126:254:17
6:17
#3005
25K
15.53 mi11:40:171:38:586:2214:46
6:05
#2578
30K
18.64 mi11:59:161:57:576:2018:59
6:07
#2078
20M
20.00 mi12:07:352:06:166:198:19
6:07
#1894
21M
21.00 mi12:13:552:12:366:196:20
6:20
#1732
35K
21.75 mi12:18:202:17:016:184:25
5:54
#1660
23M
23.00 mi12:26:012:24:426:177:41
6:08
#1513
24M
24.00 mi12:32:082:30:496:176:07
6:07
#1436
40K
24.85 mi12:37:152:35:566:165:07
5:59
#1357
25.2M
25.20 mi12:39:332:38:146:172:18
6:40
#1343
Finish
26.22 mi12:45:422:44:236:166:09
6:02
#1305
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3321315331533562(Top 13%)3366(Top 21%)3366(Top 60%)
10K6.21 mi3.10 mi3035+2862887+2662887+2662789(Top 10%)2655(Top 16%)2655(Top 47%)
15K9.32 mi3.11 mi3218-1833059-1723059-1723562(Top 13%)3366(Top 21%)3366(Top 60%)
20K12.43 mi3.11 mi3040+1782898+1612898+1612652(Top 9%)2522(Top 16%)2522(Top 45%)
Half13.11 mi0.68 mi3005+352864+342864+342322(Top 8%)2219(Top 14%)2219(Top 39%)
25K15.53 mi2.42 mi2578+4272460+4042460+4041060(Top 4%)1003(Top 6%)1003(Top 18%)
30K18.64 mi3.11 mi2078+5001982+4781982+478709(Top 2%)664(Top 4%)664(Top 12%)
20M20.00 mi1.36 mi1894+1841802+1801802+180583(Top 2%)549(Top 3%)549(Top 10%)
21M21.00 mi1.00 mi1732+1621644+1581644+158417(Top 1%)393(Top 2%)393(Top 7%)
35K21.75 mi0.75 mi1660+721574+701574+70544(Top 2%)508(Top 3%)508(Top 9%)
23M23.00 mi1.25 mi1513+1471432+1421432+142558(Top 2%)526(Top 3%)526(Top 9%)
24M24.00 mi1.00 mi1436+771356+761356+76814(Top 3%)766(Top 5%)766(Top 14%)
40K24.85 mi0.85 mi1357+791279+771279+77378(Top 1%)351(Top 2%)351(Top 6%)
25.2M25.20 mi0.35 mi1343+141266+131266+13717(Top 3%)667(Top 4%)667(Top 12%)
Finish26.22 mi1.02 mi1305+381227+391227+391009(Top 4%)947(Top 6%)947(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3562

Males

3366

M18-39

3366

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2789

Males

2655

M18-39

2655

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3562

Males

3366

M18-39

3366

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2652

Males

2522

M18-39

2522

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2322

Males

2219

M18-39

2219

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1060

Males

1003

M18-39

1003

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

709

Males

664

M18-39

664

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

583

Males

549

M18-39

549

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

417

Males

393

M18-39

393

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

544

Males

508

M18-39

508

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

558

Males

526

M18-39

526

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

814

Males

766

M18-39

766

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

378

Males

351

M18-39

351

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

717

Males

667

M18-39

667

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1009

Males

947

M18-39

947

Passing Analysis

Category:
Athletes Passed
2295
Passed By
279
Net Change
+2016
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3321
5K → 10K32135+286#3321#3035
10K → 15K37220-183#3035#3218
15K → 20K18810+178#3218#3040
20K → Half383+35#3040#3005
Half → 25K4270+427#3005#2578
25K → 30K5000+500#2578#2078
30K → 20M1851+184#2078#1894
20M → 21M1631+162#1894#1732
21M → 35K720+72#1732#1660
35K → 23M1470+147#1660#1513
23M → 24M770+77#1513#1436
24M → 40K790+79#1436#1357
40K → 25.2M184+14#1357#1343
25.2M → Finish435+38#1343#1305
TOTALS2295279+2016
📊

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