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BOSTON MARATHON 2025

Adam Grogan

Bib: 4080•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M40-44)
#0 / 2247
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:07
Rank: #3647
Start → 5K
20:07 | 6:28/mi
10K· 6.21 mi
40:15
Rank: #3621 (+26)
5K → 10K
20:08 | 6:29/mi
15K· 9.32 mi
1:00:33
Rank: #3671 (-50)
10K → 15K
20:18 | 6:32/mi
20K· 12.43 mi
1:21:05
Rank: #3679 (-8)
15K → 20K
20:32 | 6:37/mi
Half· 13.11 mi
1:25:37
Rank: #3717 (-38)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:42:06
Rank: #3829 (-112)
Half → 25K
16:29 | 6:48/mi
30K· 18.64 mi
2:04:04
Rank: #3980 (-151)
25K → 30K
21:58 | 7:04/mi
20M
2:14:06
Rank: #4140 (-160)
30K → 20M
10:02 | 7:23/mi
21M
2:22:01
Rank: #4293 (-153)
20M → 21M
7:55 | 7:55/mi
35K· 21.75 mi
2:27:33
Rank: #4432 (-139)
21M → 35K
5:32 | 7:24/mi
23M
2:37:14
Rank: #4671 (-239)
35K → 23M
9:41 | 7:44/mi
24M
2:44:33
Rank: #4764 (-93)
23M → 24M
7:19 | 7:19/mi
40K· 24.85 mi
2:50:48
Rank: #4799 (-35)
24M → 40K
6:15 | 7:19/mi
25.2M
2:53:32
Rank: #4808 (-9)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:00:20
Rank: #4754 (+54)
25.2M → Finish
6:48 | 6:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:37
Pace6:32 /mi
2nd Half
Distance13.11 mi
Time1:34:43
Pace7:14 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5520:076:2820:07
6:28
-
10K
6.21 mi10:43:0340:156:2920:08
6:29
+0:01
15K
9.32 mi11:03:211:00:336:3020:18
6:32
+0:03
20K
12.43 mi11:23:531:21:056:3120:32
6:37
+0:05
Half
13.11 mi11:28:251:25:376:324:32
6:39
+0:02
25K
15.53 mi11:44:541:42:066:3416:29
6:48
+0:09
30K
18.64 mi12:06:522:04:046:3921:58
7:04
+0:16
20M
20.00 mi12:16:542:14:066:4210:02
7:23
+0:19
21M
21.00 mi12:24:492:22:016:467:55
7:55
+0:32
35K
21.75 mi12:30:212:27:336:475:32
7:24
-0:31
23M
23.00 mi12:40:022:37:146:509:41
7:44
+0:20
24M
24.00 mi12:47:212:44:336:517:19
7:19
-0:25
40K
24.85 mi12:53:362:50:486:526:15
7:19
0:00
25.2M
25.20 mi12:56:202:53:326:532:44
7:56
+0:37
Finish
26.22 mi13:03:083:00:206:536:48
6:40
-1:16

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

6:28 /mi

Average Pace

6:53 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:54

60% of race

Time at Steady Pace

35:32

20% of race

Time at Slower Pace

35:54

20% of race

Average Pace: 6:53 /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 mi10:22:5520:076:2820:07
6:28
#3647
10K
6.21 mi10:43:0340:156:2920:08
6:29
#3621
15K
9.32 mi11:03:211:00:336:3020:18
6:32
#3671
20K
12.43 mi11:23:531:21:056:3120:32
6:37
#3679
Half
13.11 mi11:28:251:25:376:324:32
6:39
#3717
25K
15.53 mi11:44:541:42:066:3416:29
6:48
#3829
30K
18.64 mi12:06:522:04:046:3921:58
7:04
#3980
20M
20.00 mi12:16:542:14:066:4210:02
7:23
#4140
21M
21.00 mi12:24:492:22:016:467:55
7:55
#4293
35K
21.75 mi12:30:212:27:336:475:32
7:24
#4432
23M
23.00 mi12:40:022:37:146:509:41
7:44
#4671
24M
24.00 mi12:47:212:44:336:517:19
7:19
#4764
40K
24.85 mi12:53:362:50:486:526:15
7:19
#4799
25.2M
25.20 mi12:56:202:53:326:532:44
7:56
#4808
Finish
26.22 mi13:03:083:00:206:536:48
6:40
#4754
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3647345934593771(Top 13%)3557(Top 22%)3557(Top 158%)
10K6.21 mi3.10 mi3621+263433+263433+263582(Top 13%)3389(Top 21%)3389(Top 151%)
15K9.32 mi3.11 mi3671-503472-393472-393771(Top 13%)3557(Top 22%)3557(Top 158%)
20K12.43 mi3.11 mi3679-83478-63478-63751(Top 13%)3541(Top 22%)3541(Top 158%)
Half13.11 mi0.68 mi3717-383510-323510-324755(Top 17%)4415(Top 27%)4415(Top 196%)
25K15.53 mi2.42 mi3829-1123608-983608-984842(Top 17%)4450(Top 28%)4450(Top 198%)
30K18.64 mi3.11 mi3980-1513741-1333741-1335134(Top 18%)4646(Top 29%)4646(Top 207%)
20M20.00 mi1.36 mi4140-1603875-1343875-1346247(Top 22%)5352(Top 33%)5352(Top 238%)
21M21.00 mi1.00 mi4293-1533995-1203995-1206836(Top 24%)5570(Top 35%)5570(Top 248%)
35K21.75 mi0.75 mi4432-1394111-1164111-1167810(Top 27%)6164(Top 38%)6164(Top 274%)
23M23.00 mi1.25 mi4671-2394303-1924303-1928064(Top 28%)6189(Top 38%)6189(Top 275%)
24M24.00 mi1.00 mi4764-934377-744377-746469(Top 23%)5191(Top 32%)5191(Top 231%)
40K24.85 mi0.85 mi4799-354397-204397-205669(Top 20%)4643(Top 29%)4643(Top 207%)
25.2M25.20 mi0.35 mi4808-94401-44401-45490(Top 19%)4408(Top 27%)4408(Top 196%)
Finish26.22 mi1.02 mi4754+544348+534348+533718(Top 13%)3223(Top 20%)3223(Top 143%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3771

Males

3557

M40-44

3557

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3582

Males

3389

M40-44

3389

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3771

Males

3557

M40-44

3557

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3751

Males

3541

M40-44

3541

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4755

Males

4415

M40-44

4415

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4842

Males

4450

M40-44

4450

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5134

Males

4646

M40-44

4646

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6247

Males

5352

M40-44

5352

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6836

Males

5570

M40-44

5570

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7810

Males

6164

M40-44

6164

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

8064

Males

6189

M40-44

6189

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6469

Males

5191

M40-44

5191

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5669

Males

4643

M40-44

4643

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5490

Males

4408

M40-44

4408

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3718

Males

3223

M40-44

3223

Passing Analysis

Category:
Athletes Passed
737
Passed By
1844
Net Change
-1107
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3647
5K → 10K144118+26#3647#3621
10K → 15K87137-50#3621#3671
15K → 20K9098-8#3671#3679
20K → Half745-38#3679#3717
Half → 25K48160-112#3717#3829
25K → 30K77228-151#3829#3980
30K → 20M27187-160#3980#4140
20M → 21M30183-153#4140#4293
21M → 35K18157-139#4293#4432
35K → 23M29268-239#4432#4671
23M → 24M33126-93#4671#4764
24M → 40K5388-35#4764#4799
40K → 25.2M2433-9#4799#4808
25.2M → Finish7016+54#4808#4754
TOTALS7371844-1107
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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