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BOSTON MARATHON 2025

Liam Smith

Bib: 8287•M

MI

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
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
31:39
Rank: #26033
Start → 5K
31:39 | 10:11/mi
10K· 6.21 mi
1:02:37
Rank: #25604 (+429)
5K → 10K
30:58 | 9:58/mi
15K· 9.32 mi
1:33:58
Rank: #25494 (+110)
10K → 15K
31:21 | 10:05/mi
20K· 12.43 mi
2:05:41
Rank: #25265 (+229)
15K → 20K
31:43 | 10:13/mi
Half· 13.11 mi
2:12:16
Rank: #25206 (+59)
20K → Half
6:35 | 9:39/mi
25K· 15.53 mi
2:37:04
Rank: #24954 (+252)
Half → 25K
24:48 | 10:14/mi
30K· 18.64 mi
3:09:51
Rank: #24632 (+322)
25K → 30K
32:47 | 10:33/mi
20M
3:24:27
Rank: #24534 (+98)
30K → 20M
14:36 | 10:45/mi
21M
3:35:25
Rank: #24366 (+168)
20M → 21M
10:58 | 10:58/mi
35K· 21.75 mi
3:43:13
Rank: #24311 (+55)
21M → 35K
7:48 | 10:26/mi
23M
3:56:46
Rank: #24236 (+75)
35K → 23M
13:33 | 10:49/mi
24M
4:07:28
Rank: #24199 (+37)
23M → 24M
10:42 | 10:42/mi
40K· 24.85 mi
4:16:32
Rank: #24136 (+63)
24M → 40K
9:04 | 10:36/mi
25.2M
4:20:26
Rank: #24099 (+37)
40K → 25.2M
3:54 | 11:19/mi
Finish· 26.22 mi
4:30:38
Rank: #24083 (+16)
25.2M → Finish
10:12 | 10:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:16
Pace10:05 /mi
2nd Half
Distance13.11 mi
Time2:18:22
Pace10:33 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:41:2631:3910:1131:39
10:11
-
10K
6.21 mi11:12:241:02:3710:0530:58
9:58
-0:13
15K
9.32 mi11:43:451:33:5810:0531:21
10:05
+0:07
20K
12.43 mi12:15:282:05:4110:0731:43
10:13
+0:08
Half
13.11 mi12:22:032:12:1610:056:35
9:39
-0:34
25K
15.53 mi12:46:512:37:0410:0724:48
10:14
+0:35
30K
18.64 mi13:19:383:09:5110:1132:47
10:33
+0:19
20M
20.00 mi13:34:143:24:2710:1314:36
10:45
+0:12
21M
21.00 mi13:45:123:35:2510:1510:58
10:58
+0:13
35K
21.75 mi13:53:003:43:1310:167:48
10:26
-0:32
23M
23.00 mi14:06:333:56:4610:1813:33
10:49
+0:23
24M
24.00 mi14:17:154:07:2810:1910:42
10:42
-0:07
40K
24.85 mi14:26:194:16:3210:199:04
10:36
-0:06
25.2M
25.20 mi14:30:134:20:2610:203:54
11:19
+0:43
Finish
26.22 mi14:40:254:30:3810:2010:12
10:01
-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

9:39 /mi

Average Pace

10:20 /mi

Slowest Pace

11:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:36:55

80% of race

Time at Steady Pace

53:43

20% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:19 /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 mi10:41:2631:3910:1131:39
10:11
#26033
10K
6.21 mi11:12:241:02:3710:0530:58
9:58
#25604
15K
9.32 mi11:43:451:33:5810:0531:21
10:05
#25494
20K
12.43 mi12:15:282:05:4110:0731:43
10:13
#25265
Half
13.11 mi12:22:032:12:1610:056:35
9:39
#25206
25K
15.53 mi12:46:512:37:0410:0724:48
10:14
#24954
30K
18.64 mi13:19:383:09:5110:1132:47
10:33
#24632
20M
20.00 mi13:34:143:24:2710:1314:36
10:45
#24534
21M
21.00 mi13:45:123:35:2510:1510:58
10:58
#24366
35K
21.75 mi13:53:003:43:1310:167:48
10:26
#24311
23M
23.00 mi14:06:333:56:4610:1813:33
10:49
#24236
24M
24.00 mi14:17:154:07:2810:1910:42
10:42
#24199
40K
24.85 mi14:26:194:16:3210:199:04
10:36
#24136
25.2M
25.20 mi14:30:134:20:2610:203:54
11:19
#24099
Finish
26.22 mi14:40:254:30:3810:2010:12
10:01
#24083
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26033151881518825182(Top 89%)14790(Top 92%)14790(Top 262%)
10K6.21 mi3.10 mi25604+42914981+20714981+20725236(Top 89%)14810(Top 92%)14810(Top 262%)
15K9.32 mi3.11 mi25494+11014938+4314938+4325182(Top 89%)14790(Top 92%)14790(Top 262%)
20K12.43 mi3.11 mi25265+22914817+12114817+12124660(Top 87%)14515(Top 90%)14515(Top 257%)
Half13.11 mi0.68 mi25206+5914788+2914788+2923966(Top 84%)14221(Top 88%)14221(Top 252%)
25K15.53 mi2.42 mi24954+25214664+12414664+12423780(Top 84%)14093(Top 88%)14093(Top 250%)
30K18.64 mi3.11 mi24632+32214493+17114493+17123046(Top 81%)13640(Top 85%)13640(Top 242%)
20M20.00 mi1.36 mi24534+9814439+5414439+5423056(Top 81%)13551(Top 84%)13551(Top 240%)
21M21.00 mi1.00 mi24366+16814340+9914340+9921301(Top 75%)12648(Top 79%)12648(Top 224%)
35K21.75 mi0.75 mi24311+5514304+3614304+3623008(Top 81%)13391(Top 83%)13391(Top 237%)
23M23.00 mi1.25 mi24236+7514250+5414250+5422796(Top 80%)13247(Top 82%)13247(Top 235%)
24M24.00 mi1.00 mi24199+3714218+3214218+3223316(Top 82%)13468(Top 84%)13468(Top 239%)
40K24.85 mi0.85 mi24136+6314174+4414174+4422197(Top 78%)12838(Top 80%)12838(Top 228%)
25.2M25.20 mi0.35 mi24099+3714150+2414150+2421543(Top 76%)12566(Top 78%)12566(Top 223%)
Finish26.22 mi1.02 mi24083+1614142+814142+822963(Top 81%)13258(Top 82%)13258(Top 235%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

25182

Males

14790

M18-39

14790

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25236

Males

14810

M18-39

14810

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

25182

Males

14790

M18-39

14790

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

24660

Males

14515

M18-39

14515

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

23966

Males

14221

M18-39

14221

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

23780

Males

14093

M18-39

14093

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

23046

Males

13640

M18-39

13640

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

23056

Males

13551

M18-39

13551

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

21301

Males

12648

M18-39

12648

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

23008

Males

13391

M18-39

13391

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

22796

Males

13247

M18-39

13247

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

23316

Males

13468

M18-39

13468

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22197

Males

12838

M18-39

12838

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21543

Males

12566

M18-39

12566

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

22963

Males

13258

M18-39

13258

Passing Analysis

Category:
Athletes Passed
2210
Passed By
260
Net Change
+1950
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26033
5K → 10K46233+429#26033#25604
10K → 15K18171+110#25604#25494
15K → 20K25728+229#25494#25265
20K → Half601+59#25265#25206
Half → 25K2586+252#25206#24954
25K → 30K33210+322#24954#24632
30K → 20M1035+98#24632#24534
20M → 21M1735+168#24534#24366
21M → 35K649+55#24366#24311
35K → 23M10126+75#24311#24236
23M → 24M6427+37#24236#24199
24M → 40K729+63#24199#24136
40K → 25.2M403+37#24136#24099
25.2M → Finish4327+16#24099#24083
TOTALS2210260+1950
📊

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