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BOSTON MARATHON 2025

Adam Groff

Bib: 6953•M

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Masters (Masters Men)
#0 / 10463
Top 10%
Division (M45-49)
#0 / 2386
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:34
Rank: #4759
Start → 5K
20:34 | 6:37/mi
10K· 6.21 mi
41:45
Rank: #5543 (-784)
5K → 10K
21:11 | 6:49/mi
15K· 9.32 mi
1:02:31
Rank: #5307 (+236)
10K → 15K
20:46 | 6:41/mi
20K· 12.43 mi
1:23:32
Rank: #5178 (+129)
15K → 20K
21:01 | 6:46/mi
Half· 13.11 mi
1:28:05
Rank: #5150 (+28)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:44:28
Rank: #5020 (+130)
Half → 25K
16:23 | 6:45/mi
30K· 18.64 mi
2:05:57
Rank: #4800 (+220)
25K → 30K
21:29 | 6:55/mi
20M
2:15:23
Rank: #4683 (+117)
30K → 20M
9:26 | 6:57/mi
21M
2:22:45
Rank: #4597 (+86)
20M → 21M
7:22 | 7:22/mi
35K· 21.75 mi
2:27:49
Rank: #4533 (+64)
21M → 35K
5:04 | 6:46/mi
23M
2:36:24
Rank: #4386 (+147)
35K → 23M
8:35 | 6:51/mi
24M
2:43:16
Rank: #4328 (+58)
23M → 24M
6:52 | 6:52/mi
40K· 24.85 mi
2:49:08
Rank: #4248 (+80)
24M → 40K
5:52 | 6:52/mi
25.2M
2:51:44
Rank: #4234 (+14)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:58:30
Rank: #4175 (+59)
25.2M → Finish
6:46 | 6:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:05
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:30:25
Pace6:54 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:1220:346:3720:34
6:37
-
10K
6.21 mi10:47:2341:456:4321:11
6:49
+0:12
15K
9.32 mi11:08:091:02:316:4220:46
6:41
-0:08
20K
12.43 mi11:29:101:23:326:4321:01
6:46
+0:05
Half
13.11 mi11:33:431:28:056:434:33
6:40
-0:06
25K
15.53 mi11:50:061:44:286:4316:23
6:45
+0:05
30K
18.64 mi12:11:352:05:576:4521:29
6:55
+0:10
20M
20.00 mi12:21:012:15:236:469:26
6:57
+0:02
21M
21.00 mi12:28:232:22:456:487:22
7:22
+0:25
35K
21.75 mi12:33:272:27:496:485:04
6:46
-0:36
23M
23.00 mi12:42:022:36:246:488:35
6:51
+0:05
24M
24.00 mi12:48:542:43:166:486:52
6:52
+0:01
40K
24.85 mi12:54:462:49:086:485:52
6:52
0:00
25.2M
25.20 mi12:57:222:51:446:492:36
7:32
+0:40
Finish
26.22 mi13:04:082:58:306:496:46
6:38
-0:54

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

6:37 /mi

Average Pace

6:49 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:32

94% of race

Time at Steady Pace

9:58

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:48 /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 mi10:26:1220:346:3720:34
6:37
#4759
10K
6.21 mi10:47:2341:456:4321:11
6:49
#5543
15K
9.32 mi11:08:091:02:316:4220:46
6:41
#5307
20K
12.43 mi11:29:101:23:326:4321:01
6:46
#5178
Half
13.11 mi11:33:431:28:056:434:33
6:40
#5150
25K
15.53 mi11:50:061:44:286:4316:23
6:45
#5020
30K
18.64 mi12:11:352:05:576:4521:29
6:55
#4800
20M
20.00 mi12:21:012:15:236:469:26
6:57
#4683
21M
21.00 mi12:28:232:22:456:487:22
7:22
#4597
35K
21.75 mi12:33:272:27:496:485:04
6:46
#4533
23M
23.00 mi12:42:022:36:246:488:35
6:51
#4386
24M
24.00 mi12:48:542:43:166:486:52
6:52
#4328
40K
24.85 mi12:54:462:49:086:485:52
6:52
#4248
25.2M
25.20 mi12:57:222:51:446:492:36
7:32
#4234
Finish
26.22 mi13:04:082:58:306:496:46
6:38
#4175
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4759446044604928(Top 17%)4591(Top 29%)4591(Top 192%)
10K6.21 mi3.10 mi5543-7845123-6635123-6636565(Top 23%)5931(Top 37%)5931(Top 249%)
15K9.32 mi3.11 mi5307+2364922+2014922+2014928(Top 17%)4591(Top 29%)4591(Top 192%)
20K12.43 mi3.11 mi5178+1294798+1244798+1244942(Top 17%)4566(Top 28%)4566(Top 191%)
Half13.11 mi0.68 mi5150+284778+204778+204951(Top 17%)4580(Top 28%)4580(Top 192%)
25K15.53 mi2.42 mi5020+1304657+1214657+1214529(Top 16%)4185(Top 26%)4185(Top 175%)
30K18.64 mi3.11 mi4800+2204442+2154442+2154165(Top 15%)3828(Top 24%)3828(Top 160%)
20M20.00 mi1.36 mi4683+1174339+1034339+1033755(Top 13%)3454(Top 21%)3454(Top 145%)
21M21.00 mi1.00 mi4597+864263+764263+763934(Top 14%)3569(Top 22%)3569(Top 150%)
35K21.75 mi0.75 mi4533+644200+634200+633914(Top 14%)3514(Top 22%)3514(Top 147%)
23M23.00 mi1.25 mi4386+1474060+1404060+1402982(Top 10%)2724(Top 17%)2724(Top 114%)
24M24.00 mi1.00 mi4328+583996+643996+643887(Top 14%)3440(Top 21%)3440(Top 144%)
40K24.85 mi0.85 mi4248+803921+753921+753143(Top 11%)2816(Top 17%)2816(Top 118%)
25.2M25.20 mi0.35 mi4234+143906+153906+153548(Top 12%)3092(Top 19%)3092(Top 130%)
Finish26.22 mi1.02 mi4175+593846+603846+603544(Top 12%)3091(Top 19%)3091(Top 130%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4928

Males

4591

M45-49

4591

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6565

Males

5931

M45-49

5931

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4928

Males

4591

M45-49

4591

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4942

Males

4566

M45-49

4566

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4951

Males

4580

M45-49

4580

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4529

Males

4185

M45-49

4185

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4165

Males

3828

M45-49

3828

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3755

Males

3454

M45-49

3454

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3934

Males

3569

M45-49

3569

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3914

Males

3514

M45-49

3514

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2982

Males

2724

M45-49

2724

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3887

Males

3440

M45-49

3440

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3143

Males

2816

M45-49

2816

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3548

Males

3092

M45-49

3092

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3544

Males

3091

M45-49

3091

Passing Analysis

Category:
Athletes Passed
1735
Passed By
1151
Net Change
+584
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4759
5K → 10K21805-784#4759#5543
10K → 15K27034+236#5543#5307
15K → 20K19364+129#5307#5178
20K → Half3911+28#5178#5150
Half → 25K17343+130#5150#5020
25K → 30K27050+220#5020#4800
30K → 20M14124+117#4800#4683
20M → 21M11731+86#4683#4597
21M → 35K739+64#4597#4533
35K → 23M15710+147#4533#4386
23M → 24M7820+58#4386#4328
24M → 40K9515+80#4328#4248
40K → 25.2M2915+14#4248#4234
25.2M → Finish7920+59#4234#4175
TOTALS17351151+584
📊

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