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BOSTON MARATHON 2025

Brian Gannon

Bib: 6634•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 39%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 41%
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:03/mi
21:54
↑ 97↓ 3451.5%
10K· 6.21 mi
7:06/mi
43:58
↑ 79↓ 1380.4%
15K· 9.32 mi
7:16/mi
1:06:32
↑ 67↓ 78
20K· 12.43 mi
7:20/mi
1:29:19
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:34:15
↑ 19↓ 370.5%
25K· 15.53 mi
7:20/mi
1:52:03
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:16:00
↑ 181↓ 1480.2%
20M
7:56/mi
2:26:47
↑ 64↓ 500.2%
21M
9:27/mi
2:36:14
↑ 106↓ 241.6%
35K· 21.75 mi
9:29/mi
2:43:20
↑ 17↓ 861.7%
23M
9:03/mi
2:54:40
↑ 23↓ 630.6%
24M
8:07/mi
3:02:47
↓ 821.3%
40K· 24.85 mi
8:57/mi
3:10:26
↓ 200.3%
25.2M
10:38/mi
3:14:06
↑ 13↓ 160.2%
Finish· 26.22 mi
8:29/mi
3:22:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:15
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:48:30
Pace8:17 /mi
📊Positive Split: 15.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:5321:547:0321:54
7:03
-
10K
6.21 mi10:49:5743:587:0522:04
7:06
+0:03
15K
9.32 mi11:12:311:06:327:0822:34
7:16
+0:10
20K
12.43 mi11:35:181:29:197:1122:47
7:20
+0:04
Half
13.11 mi11:40:141:34:157:114:56
7:14
-0:06
25K
15.53 mi11:58:021:52:037:1317:48
7:20
+0:06
30K
18.64 mi12:21:592:16:007:1823:57
7:43
+0:23
20M
20.00 mi12:32:462:26:477:2010:47
7:56
+0:13
21M
21.00 mi12:42:132:36:147:269:27
9:27
+1:31
35K
21.75 mi12:49:192:43:207:317:06
9:29
+0:02
23M
23.00 mi13:00:392:54:407:3611:20
9:03
-0:26
24M
24.00 mi13:08:463:02:477:378:07
8:07
-0:56
40K
24.85 mi13:16:253:10:267:407:39
8:57
+0:50
25.2M
25.20 mi13:20:053:14:067:423:40
10:38
+1:41
Finish
26.22 mi13:28:443:22:457:448:39
8:29
-2:09

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

7:03 /mi

Average Pace

7:44 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:03

55% of race

Time at Steady Pace

42:51

21% of race

Time at Slower Pace

47:51

24% of race

Average Pace: 7:44 /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 mi10:27:5321:547:0321:54
7:03
#8211
10K
6.21 mi10:49:5743:587:0522:04
7:06
#8471
15K
9.32 mi11:12:311:06:327:0822:34
7:16
#8816
20K
12.43 mi11:35:181:29:197:1122:47
7:20
#8867
Half
13.11 mi11:40:141:34:157:114:56
7:14
#8879
25K
15.53 mi11:58:021:52:037:1317:48
7:20
#8793
30K
18.64 mi12:21:592:16:007:1823:57
7:43
#8797
20M
20.00 mi12:32:462:26:477:2010:47
7:56
#8862
21M
21.00 mi12:42:132:36:147:269:27
9:27
#9308
35K
21.75 mi12:49:192:43:207:317:06
9:29
#9829
23M
23.00 mi13:00:392:54:407:3611:20
9:03
#10304
24M
24.00 mi13:08:463:02:477:378:07
8:07
#10361
40K
24.85 mi13:16:253:10:267:407:39
8:57
#10571
25.2M
25.20 mi13:20:053:14:067:423:40
10:38
#10756
Finish
26.22 mi13:28:443:22:457:448:39
8:29
#10954
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8211713371339674(Top 34%)7909(Top 49%)7909(Top 331%)
10K6.21 mi3.10 mi8471-2607282-1497282-1498696(Top 31%)7418(Top 46%)7418(Top 311%)
15K9.32 mi3.11 mi8816-3457478-1967478-1969674(Top 34%)7909(Top 49%)7909(Top 331%)
20K12.43 mi3.11 mi8867-517487-97487-99311(Top 33%)7638(Top 47%)7638(Top 320%)
Half13.11 mi0.68 mi8879-127486+17486+19357(Top 33%)7700(Top 48%)7700(Top 323%)
25K15.53 mi2.42 mi8793+867418+687418+688679(Top 31%)7165(Top 44%)7165(Top 300%)
30K18.64 mi3.11 mi8797-47357+617357+619248(Top 33%)7286(Top 45%)7286(Top 305%)
20M20.00 mi1.36 mi8862-657359-27359-210000(Top 35%)7546(Top 47%)7546(Top 316%)
21M21.00 mi1.00 mi9308-4467570-2117570-21115826(Top 56%)10164(Top 63%)10164(Top 426%)
35K21.75 mi0.75 mi9829-5217830-2607830-26020272(Top 71%)12092(Top 75%)12092(Top 507%)
23M23.00 mi1.25 mi10304-4758013-1838013-18316527(Top 58%)10295(Top 64%)10295(Top 431%)
24M24.00 mi1.00 mi10361-578019-68019-611988(Top 42%)8154(Top 51%)8154(Top 342%)
40K24.85 mi0.85 mi10571-2108094-758094-7515965(Top 56%)9891(Top 61%)9891(Top 415%)
25.2M25.20 mi0.35 mi10756-1858160-668160-6619403(Top 68%)11477(Top 71%)11477(Top 481%)
Finish26.22 mi1.02 mi10954-1988206-468206-4616108(Top 57%)9974(Top 62%)9974(Top 418%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9674

Males

7909

M45-49

7909

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8696

Males

7418

M45-49

7418

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9674

Males

7909

M45-49

7909

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

9311

Males

7638

M45-49

7638

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

9357

Males

7700

M45-49

7700

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8679

Males

7165

M45-49

7165

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

9248

Males

7286

M45-49

7286

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

10000

Males

7546

M45-49

7546

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15826

Males

10164

M45-49

10164

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

20272

Males

12092

M45-49

12092

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16527

Males

10295

M45-49

10295

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11988

Males

8154

M45-49

8154

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15965

Males

9891

M45-49

9891

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19403

Males

11477

M45-49

11477

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16108

Males

9974

M45-49

9974

Passing Analysis

Category:
Athletes Passed
1028
Passed By
3769
Net Change
-2743
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8211
5K → 10K107367-260#8211#8471
10K → 15K74419-345#8471#8816
15K → 20K159210-51#8816#8867
20K → Half2537-12#8867#8879
Half → 25K190104+86#8879#8793
25K → 30K215219-4#8793#8797
30K → 20M80145-65#8797#8862
20M → 21M23469-446#8862#9308
21M → 35K11532-521#9308#9829
35K → 23M28501-475#9829#10304
23M → 24M54111-57#10304#10361
24M → 40K24234-210#10361#10571
40K → 25.2M8193-185#10571#10756
25.2M → Finish30228-198#10756#10954
TOTALS10283769-2743
📊

Passing Visuals

Category:
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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