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BOSTON MARATHON 2025

Adam Grist

Bib: 4557•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Division (M18-39)
#0 / 5642
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:54
Rank: #3138
Start → 5K
19:54 | 6:24/mi
10K· 6.21 mi
39:47
Rank: #3078 (+60)
5K → 10K
19:53 | 6:24/mi
15K· 9.32 mi
59:45
Rank: #3070 (+8)
10K → 15K
19:58 | 6:26/mi
20K· 12.43 mi
1:20:07
Rank: #3139 (-69)
15K → 20K
20:22 | 6:33/mi
Half· 13.11 mi
1:24:30
Rank: #3137 (+2)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:40:18
Rank: #3090 (+47)
Half → 25K
15:48 | 6:31/mi
30K· 18.64 mi
2:00:51
Rank: #2928 (+162)
25K → 30K
20:33 | 6:37/mi
20M
2:09:52
Rank: #2824 (+104)
30K → 20M
9:01 | 6:38/mi
21M
2:16:50
Rank: #2749 (+75)
20M → 21M
6:58 | 6:58/mi
35K· 21.75 mi
2:21:27
Rank: #2671 (+78)
21M → 35K
4:37 | 6:10/mi
23M
2:29:39
Rank: #2548 (+123)
35K → 23M
8:12 | 6:33/mi
24M
2:35:52
Rank: #2433 (+115)
23M → 24M
6:13 | 6:13/mi
40K· 24.85 mi
2:41:24
Rank: #2371 (+62)
24M → 40K
5:32 | 6:28/mi
25.2M
2:43:47
Rank: #2335 (+36)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:50:05
Rank: #2285 (+50)
25.2M → Finish
6:18 | 6:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:30
Pace6:27 /mi
2nd Half
Distance13.11 mi
Time1:25:35
Pace6:32 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5119:546:2419:54
6:24
-
10K
6.21 mi10:43:4439:476:2419:53
6:24
0:00
15K
9.32 mi11:03:4259:456:2519:58
6:26
+0:02
20K
12.43 mi11:24:041:20:076:2720:22
6:33
+0:07
Half
13.11 mi11:28:271:24:306:274:23
6:25
-0:08
25K
15.53 mi11:44:151:40:186:2715:48
6:31
+0:06
30K
18.64 mi12:04:482:00:516:2920:33
6:37
+0:06
20M
20.00 mi12:13:492:09:526:309:01
6:38
+0:01
21M
21.00 mi12:20:472:16:506:316:58
6:58
+0:20
35K
21.75 mi12:25:242:21:276:304:37
6:10
-0:48
23M
23.00 mi12:33:362:29:396:308:12
6:33
+0:23
24M
24.00 mi12:39:492:35:526:306:13
6:13
-0:20
40K
24.85 mi12:45:212:41:246:305:32
6:28
+0:15
25.2M
25.20 mi12:47:442:43:476:302:23
6:55
+0:27
Finish
26.22 mi12:54:022:50:056:306:18
6:11
-0:44

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

6:10 /mi

Average Pace

6:30 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:44

95% of race

Time at Steady Pace

9:21

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:29 /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 mi10:23:5119:546:2419:54
6:24
#3138
10K
6.21 mi10:43:4439:476:2419:53
6:24
#3078
15K
9.32 mi11:03:4259:456:2519:58
6:26
#3070
20K
12.43 mi11:24:041:20:076:2720:22
6:33
#3139
Half
13.11 mi11:28:271:24:306:274:23
6:25
#3137
25K
15.53 mi11:44:151:40:186:2715:48
6:31
#3090
30K
18.64 mi12:04:482:00:516:2920:33
6:37
#2928
20M
20.00 mi12:13:492:09:526:309:01
6:38
#2824
21M
21.00 mi12:20:472:16:506:316:58
6:58
#2749
35K
21.75 mi12:25:242:21:276:304:37
6:10
#2671
23M
23.00 mi12:33:362:29:396:308:12
6:33
#2548
24M
24.00 mi12:39:492:35:526:306:13
6:13
#2433
40K
24.85 mi12:45:212:41:246:305:32
6:28
#2371
25.2M
25.20 mi12:47:442:43:476:302:23
6:55
#2335
Finish
26.22 mi12:54:022:50:056:306:18
6:11
#2285
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3138298129813087(Top 11%)2939(Top 18%)2939(Top 52%)
10K6.21 mi3.10 mi3078+602927+542927+543034(Top 11%)2888(Top 18%)2888(Top 51%)
15K9.32 mi3.11 mi3070+82923+42923+43087(Top 11%)2939(Top 18%)2939(Top 52%)
20K12.43 mi3.11 mi3139-692991-682991-683431(Top 12%)3249(Top 20%)3249(Top 58%)
Half13.11 mi0.68 mi3137+22990+12990+13150(Top 11%)2991(Top 19%)2991(Top 53%)
25K15.53 mi2.42 mi3090+472945+452945+452959(Top 10%)2813(Top 17%)2813(Top 50%)
30K18.64 mi3.11 mi2928+1622788+1572788+1572464(Top 9%)2332(Top 14%)2332(Top 41%)
20M20.00 mi1.36 mi2824+1042690+982690+982171(Top 8%)2052(Top 13%)2052(Top 36%)
21M21.00 mi1.00 mi2749+752617+732617+732121(Top 7%)1986(Top 12%)1986(Top 35%)
35K21.75 mi0.75 mi2671+782542+752542+751153(Top 4%)1088(Top 7%)1088(Top 19%)
23M23.00 mi1.25 mi2548+1232425+1172425+1171630(Top 6%)1523(Top 9%)1523(Top 27%)
24M24.00 mi1.00 mi2433+1152315+1102315+1101084(Top 4%)1020(Top 6%)1020(Top 18%)
40K24.85 mi0.85 mi2371+622253+622253+621512(Top 5%)1399(Top 9%)1399(Top 25%)
25.2M25.20 mi0.35 mi2335+362219+342219+341248(Top 4%)1150(Top 7%)1150(Top 20%)
Finish26.22 mi1.02 mi2285+502168+512168+511467(Top 5%)1365(Top 8%)1365(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

3087

Males

2939

M18-39

2939

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3034

Males

2888

M18-39

2888

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

3087

Males

2939

M18-39

2939

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3431

Males

3249

M18-39

3249

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3150

Males

2991

M18-39

2991

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2959

Males

2813

M18-39

2813

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2464

Males

2332

M18-39

2332

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2171

Males

2052

M18-39

2052

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

2121

Males

1986

M18-39

1986

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1153

Males

1088

M18-39

1088

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1630

Males

1523

M18-39

1523

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1084

Males

1020

M18-39

1020

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1512

Males

1399

M18-39

1399

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1248

Males

1150

M18-39

1150

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1467

Males

1365

M18-39

1365

Passing Analysis

Category:
Athletes Passed
1302
Passed By
449
Net Change
+853
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3138
5K → 10K15999+60#3138#3078
10K → 15K8981+8#3078#3070
15K → 20K65134-69#3070#3139
20K → Half1412+2#3139#3137
Half → 25K8235+47#3137#3090
25K → 30K20543+162#3090#2928
30K → 20M1139+104#2928#2824
20M → 21M849+75#2824#2749
21M → 35K791+78#2749#2671
35K → 23M1263+123#2671#2548
23M → 24M1161+115#2548#2433
24M → 40K697+62#2433#2371
40K → 25.2M415+36#2371#2335
25.2M → Finish6010+50#2335#2285
TOTALS1302449+853
📊

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