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BOSTON MARATHON 2025

James Smith

Bib: 3747•M

NJ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 11%
Division (M18-39)
#0 / 5642
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:40
Rank: #2616
Start → 5K
19:40 | 6:20/mi
10K· 6.21 mi
39:11
Rank: #2447 (+169)
5K → 10K
19:31 | 6:17/mi
15K· 9.32 mi
58:40
Rank: #2336 (+111)
10K → 15K
19:29 | 6:16/mi
20K· 12.43 mi
1:18:17
Rank: #2257 (+79)
15K → 20K
19:37 | 6:19/mi
Half· 13.11 mi
1:22:35
Rank: #2269 (-12)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:38:08
Rank: #2274 (-5)
Half → 25K
15:33 | 6:25/mi
30K· 18.64 mi
1:58:34
Rank: #2237 (+37)
25K → 30K
20:26 | 6:35/mi
20M
2:07:35
Rank: #2214 (+23)
30K → 20M
9:01 | 6:38/mi
21M
2:14:29
Rank: #2169 (+45)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:19:09
Rank: #2124 (+45)
21M → 35K
4:40 | 6:14/mi
23M
2:27:20
Rank: #2047 (+77)
35K → 23M
8:11 | 6:32/mi
24M
2:33:37
Rank: #1970 (+77)
23M → 24M
6:17 | 6:17/mi
40K· 24.85 mi
2:39:13
Rank: #1940 (+30)
24M → 40K
5:36 | 6:33/mi
25.2M
2:41:40
Rank: #1919 (+21)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:48:12
Rank: #1923 (-4)
25.2M → Finish
6:32 | 6:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:35
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:25:37
Pace6:32 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3919:406:2019:40
6:20
-
10K
6.21 mi10:42:1039:116:1819:31
6:17
-0:03
15K
9.32 mi11:01:3958:406:1819:29
6:16
-0:01
20K
12.43 mi11:21:161:18:176:1819:37
6:19
+0:03
Half
13.11 mi11:25:341:22:356:184:18
6:18
-0:01
25K
15.53 mi11:41:071:38:086:1915:33
6:25
+0:07
30K
18.64 mi12:01:331:58:346:2220:26
6:35
+0:10
20M
20.00 mi12:10:342:07:356:239:01
6:38
+0:03
21M
21.00 mi12:17:282:14:296:246:54
6:54
+0:16
35K
21.75 mi12:22:082:19:096:244:40
6:14
-0:40
23M
23.00 mi12:30:192:27:206:248:11
6:32
+0:18
24M
24.00 mi12:36:362:33:376:246:17
6:17
-0:15
40K
24.85 mi12:42:122:39:136:245:36
6:33
+0:16
25.2M
25.20 mi12:44:392:41:406:252:27
7:06
+0:33
Finish
26.22 mi12:51:112:48:126:256:32
6:25
-0:41

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

6:14 /mi

Average Pace

6:25 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:51

94% of race

Time at Steady Pace

9:21

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:25 /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 mi10:22:3919:406:2019:40
6:20
#2616
10K
6.21 mi10:42:1039:116:1819:31
6:17
#2447
15K
9.32 mi11:01:3958:406:1819:29
6:16
#2336
20K
12.43 mi11:21:161:18:176:1819:37
6:19
#2257
Half
13.11 mi11:25:341:22:356:184:18
6:18
#2269
25K
15.53 mi11:41:071:38:086:1915:33
6:25
#2274
30K
18.64 mi12:01:331:58:346:2220:26
6:35
#2237
20M
20.00 mi12:10:342:07:356:239:01
6:38
#2214
21M
21.00 mi12:17:282:14:296:246:54
6:54
#2169
35K
21.75 mi12:22:082:19:096:244:40
6:14
#2124
23M
23.00 mi12:30:192:27:206:248:11
6:32
#2047
24M
24.00 mi12:36:362:33:376:246:17
6:17
#1970
40K
24.85 mi12:42:122:39:136:245:36
6:33
#1940
25.2M
25.20 mi12:44:392:41:406:252:27
7:06
#1919
Finish
26.22 mi12:51:112:48:126:256:32
6:25
#1923
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2616249124912198(Top 8%)2094(Top 13%)2094(Top 37%)
10K6.21 mi3.10 mi2447+1692332+1592332+1592295(Top 8%)2196(Top 14%)2196(Top 39%)
15K9.32 mi3.11 mi2336+1112231+1012231+1012198(Top 8%)2094(Top 13%)2094(Top 37%)
20K12.43 mi3.11 mi2257+792158+732158+732067(Top 7%)1971(Top 12%)1971(Top 35%)
Half13.11 mi0.68 mi2269-122168-102168-102473(Top 9%)2362(Top 15%)2362(Top 42%)
25K15.53 mi2.42 mi2274-52171-32171-32422(Top 9%)2302(Top 14%)2302(Top 41%)
30K18.64 mi3.11 mi2237+372132+392132+392300(Top 8%)2178(Top 14%)2178(Top 39%)
20M20.00 mi1.36 mi2214+232111+212111+212162(Top 8%)2043(Top 13%)2043(Top 36%)
21M21.00 mi1.00 mi2169+452068+432068+431868(Top 7%)1759(Top 11%)1759(Top 31%)
35K21.75 mi0.75 mi2124+452023+452023+451374(Top 5%)1301(Top 8%)1301(Top 23%)
23M23.00 mi1.25 mi2047+771946+771946+771576(Top 6%)1474(Top 9%)1474(Top 26%)
24M24.00 mi1.00 mi1970+771869+771869+771263(Top 4%)1182(Top 7%)1182(Top 21%)
40K24.85 mi0.85 mi1940+301838+311838+311776(Top 6%)1639(Top 10%)1639(Top 29%)
25.2M25.20 mi0.35 mi1919+211817+211817+211776(Top 6%)1615(Top 10%)1615(Top 29%)
Finish26.22 mi1.02 mi1923-41821-41821-42340(Top 8%)2132(Top 13%)2132(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2198

Males

2094

M18-39

2094

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2295

Males

2196

M18-39

2196

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2198

Males

2094

M18-39

2094

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

2067

Males

1971

M18-39

1971

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2473

Males

2362

M18-39

2362

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2422

Males

2302

M18-39

2302

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2300

Males

2178

M18-39

2178

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2162

Males

2043

M18-39

2043

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1868

Males

1759

M18-39

1759

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1374

Males

1301

M18-39

1301

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1576

Males

1474

M18-39

1474

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1263

Males

1182

M18-39

1182

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1776

Males

1639

M18-39

1639

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1776

Males

1615

M18-39

1615

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2340

Males

2132

M18-39

2132

Passing Analysis

Category:
Athletes Passed
1043
Passed By
350
Net Change
+693
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2616
5K → 10K21344+169#2616#2447
10K → 15K14332+111#2447#2336
15K → 20K11334+79#2336#2257
20K → Half618-12#2257#2269
Half → 25K5055-5#2269#2274
25K → 30K10568+37#2274#2237
30K → 20M4724+23#2237#2214
20M → 21M6217+45#2214#2169
21M → 35K505+45#2169#2124
35K → 23M858+77#2124#2047
23M → 24M781+77#2047#1970
24M → 40K399+30#1970#1940
40K → 25.2M232+21#1940#1919
25.2M → Finish2933-4#1919#1923
TOTALS1043350+693
📊

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