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BOSTON MARATHON 2025

Gary Gellin

Bib: 5751•M

CA

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 (M55-59)
#0 / 1648
Top 3%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:06
Rank: #3607
Start → 5K
20:06 | 6:28/mi
10K· 6.21 mi
40:33
Rank: #3958 (-351)
5K → 10K
20:27 | 6:35/mi
15K· 9.32 mi
1:00:55
Rank: #3927 (+31)
10K → 15K
20:22 | 6:33/mi
20K· 12.43 mi
1:21:44
Rank: #3992 (-65)
15K → 20K
20:49 | 6:42/mi
Half· 13.11 mi
1:26:11
Rank: #3975 (+17)
20K → Half
4:27 | 6:31/mi
25K· 15.53 mi
1:42:43
Rank: #4083 (-108)
Half → 25K
16:32 | 6:49/mi
30K· 18.64 mi
2:04:41
Rank: #4222 (-139)
25K → 30K
21:58 | 7:04/mi
20M
2:14:33
Rank: #4326 (-104)
30K → 20M
9:52 | 7:16/mi
21M
2:22:22
Rank: #4444 (-118)
20M → 21M
7:49 | 7:49/mi
35K· 21.75 mi
2:27:28
Rank: #4406 (+38)
21M → 35K
5:06 | 6:49/mi
23M
2:36:36
Rank: #4446 (-40)
35K → 23M
9:08 | 7:18/mi
24M
2:43:47
Rank: #4502 (-56)
23M → 24M
7:11 | 7:11/mi
40K· 24.85 mi
2:50:08
Rank: #4581 (-79)
24M → 40K
6:21 | 7:26/mi
25.2M
2:52:56
Rank: #4620 (-39)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:00:01
Rank: #4692 (-72)
25.2M → Finish
7:05 | 6:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:11
Pace6:34 /mi
2nd Half
Distance13.11 mi
Time1:33:50
Pace7:09 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:3520:066:2820:06
6:28
-
10K
6.21 mi10:45:0240:336:3220:27
6:35
+0:07
15K
9.32 mi11:05:241:00:556:3220:22
6:33
-0:02
20K
12.43 mi11:26:131:21:446:3520:49
6:42
+0:09
Half
13.11 mi11:30:401:26:116:344:27
6:31
-0:11
25K
15.53 mi11:47:121:42:436:3716:32
6:49
+0:18
30K
18.64 mi12:09:102:04:416:4121:58
7:04
+0:15
20M
20.00 mi12:19:022:14:336:449:52
7:16
+0:12
21M
21.00 mi12:26:512:22:226:477:49
7:49
+0:33
35K
21.75 mi12:31:572:27:286:475:06
6:49
-1:00
23M
23.00 mi12:41:052:36:366:499:08
7:18
+0:29
24M
24.00 mi12:48:162:43:476:497:11
7:11
-0:07
40K
24.85 mi12:54:372:50:086:516:21
7:26
+0:15
25.2M
25.20 mi12:57:252:52:566:522:48
8:07
+0:41
Finish
26.22 mi13:04:303:00:016:527:05
6:57
-1:10

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

6:52 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:11

48% of race

Time at Steady Pace

57:52

32% of race

Time at Slower Pace

35:58

20% of race

Average Pace: 6:52 /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 mi10:24:3520:066:2820:06
6:28
#3607
10K
6.21 mi10:45:0240:336:3220:27
6:35
#3958
15K
9.32 mi11:05:241:00:556:3220:22
6:33
#3927
20K
12.43 mi11:26:131:21:446:3520:49
6:42
#3992
Half
13.11 mi11:30:401:26:116:344:27
6:31
#3975
25K
15.53 mi11:47:121:42:436:3716:32
6:49
#4083
30K
18.64 mi12:09:102:04:416:4121:58
7:04
#4222
20M
20.00 mi12:19:022:14:336:449:52
7:16
#4326
21M
21.00 mi12:26:512:22:226:477:49
7:49
#4444
35K
21.75 mi12:31:572:27:286:475:06
6:49
#4406
23M
23.00 mi12:41:052:36:366:499:08
7:18
#4446
24M
24.00 mi12:48:162:43:476:497:11
7:11
#4502
40K
24.85 mi12:54:372:50:086:516:21
7:26
#4581
25.2M
25.20 mi12:57:252:52:566:522:48
8:07
#4620
Finish
26.22 mi13:04:303:00:016:527:05
6:57
#4692
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi3607342234223914(Top 14%)3690(Top 23%)3690(Top 224%)
10K6.21 mi3.10 mi3958-3513742-3203742-3204310(Top 15%)4048(Top 25%)4048(Top 246%)
15K9.32 mi3.11 mi3927+313702+403702+403914(Top 14%)3690(Top 23%)3690(Top 224%)
20K12.43 mi3.11 mi3992-653759-573759-574428(Top 16%)4132(Top 26%)4132(Top 251%)
Half13.11 mi0.68 mi3975+173743+163743+163821(Top 13%)3601(Top 22%)3601(Top 219%)
25K15.53 mi2.42 mi4083-1083838-953838-954997(Top 18%)4584(Top 28%)4584(Top 278%)
30K18.64 mi3.11 mi4222-1393952-1143952-1145131(Top 18%)4643(Top 29%)4643(Top 282%)
20M20.00 mi1.36 mi4326-1044040-884040-885530(Top 19%)4855(Top 30%)4855(Top 295%)
21M21.00 mi1.00 mi4444-1184124-844124-846245(Top 22%)5213(Top 32%)5213(Top 316%)
35K21.75 mi0.75 mi4406+384087+374087+374187(Top 15%)3740(Top 23%)3740(Top 227%)
23M23.00 mi1.25 mi4446-404113-264113-265408(Top 19%)4597(Top 29%)4597(Top 279%)
24M24.00 mi1.00 mi4502-564151-384151-385678(Top 20%)4703(Top 29%)4703(Top 285%)
40K24.85 mi0.85 mi4581-794210-594210-596324(Top 22%)5033(Top 31%)5033(Top 305%)
25.2M25.20 mi0.35 mi4620-394243-334243-336482(Top 23%)5011(Top 31%)5011(Top 304%)
Finish26.22 mi1.02 mi4692-724294-514294-515384(Top 19%)4352(Top 27%)4352(Top 264%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3914

Males

3690

M55-59

3690

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4310

Males

4048

M55-59

4048

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3914

Males

3690

M55-59

3690

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4428

Males

4132

M55-59

4132

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3821

Males

3601

M55-59

3601

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

4997

Males

4584

M55-59

4584

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5131

Males

4643

M55-59

4643

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5530

Males

4855

M55-59

4855

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6245

Males

5213

M55-59

5213

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4187

Males

3740

M55-59

3740

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5408

Males

4597

M55-59

4597

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5678

Males

4703

M55-59

4703

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6324

Males

5033

M55-59

5033

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6482

Males

5011

M55-59

5011

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5384

Males

4352

M55-59

4352

Passing Analysis

Category:
Athletes Passed
688
Passed By
1773
Net Change
-1085
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3607
5K → 10K34385-351#3607#3958
10K → 15K11079+31#3958#3927
15K → 20K72137-65#3927#3992
20K → Half2811+17#3992#3975
Half → 25K50158-108#3975#4083
25K → 30K93232-139#4083#4222
30K → 20M43147-104#4222#4326
20M → 21M36154-118#4326#4444
21M → 35K6022+38#4444#4406
35K → 23M5999-40#4406#4446
23M → 24M3894-56#4446#4502
24M → 40K34113-79#4502#4581
40K → 25.2M1352-39#4581#4620
25.2M → Finish1890-72#4620#4692
TOTALS6881773-1085
📊

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