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BOSTON MARATHON 2025

Gustavo Chagnay

Bib: 9284•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 27%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M40-44)
#0 / 2247
Top 33%
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
6:49/mi
21:10
↑ 97↓ 3451.5%
10K· 6.21 mi
6:43/mi
42:02
↑ 79↓ 1380.4%
15K· 9.32 mi
6:43/mi
1:02:53
↑ 67↓ 78
20K· 12.43 mi
6:48/mi
1:24:02
↑ 106↓ 860.1%
Half· 13.11 mi
6:42/mi
1:28:36
↑ 19↓ 370.5%
25K· 15.53 mi
6:51/mi
1:45:12
↑ 66↓ 880.2%
30K· 18.64 mi
7:02/mi
2:07:04
↑ 181↓ 1480.2%
20M
7:02/mi
2:16:38
↑ 64↓ 500.2%
21M
7:23/mi
2:24:01
↑ 106↓ 241.6%
35K· 21.75 mi
6:40/mi
2:29:00
↑ 17↓ 861.7%
23M
6:58/mi
2:37:43
↑ 23↓ 630.6%
24M
6:48/mi
2:44:31
↓ 821.3%
40K· 24.85 mi
7:01/mi
2:50:31
↓ 200.3%
25.2M
7:38/mi
2:53:09
↑ 13↓ 160.2%
Finish· 26.22 mi
6:38/mi
2:59:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:36
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:31:19
Pace6:58 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:3721:106:4921:10
6:49
-
10K
6.21 mi11:07:2942:026:4620:52
6:43
-0:06
15K
9.32 mi11:28:201:02:536:4520:51
6:43
0:00
20K
12.43 mi11:49:291:24:026:4621:09
6:48
+0:05
Half
13.11 mi11:54:031:28:366:464:34
6:42
-0:06
25K
15.53 mi12:10:391:45:126:4616:36
6:51
+0:09
30K
18.64 mi12:32:312:07:046:4921:52
7:02
+0:11
20M
20.00 mi12:42:052:16:386:509:34
7:02
0:00
21M
21.00 mi12:49:282:24:016:517:23
7:23
+0:21
35K
21.75 mi12:54:272:29:006:514:59
6:40
-0:43
23M
23.00 mi13:03:102:37:436:518:43
6:58
+0:18
24M
24.00 mi13:09:582:44:316:516:48
6:48
-0:10
40K
24.85 mi13:15:582:50:316:526:00
7:01
+0:13
25.2M
25.20 mi13:18:362:53:096:522:38
7:38
+0:37
Finish
26.22 mi13:25:222:59:556:526:46
6:38
-1:00

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

6:38 /mi

Average Pace

6:52 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:54

94% of race

Time at Steady Pace

10:01

6% of race

Time at Slower Pace

0:00

0% 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 mi10:46:3721:106:4921:10
6:49
#6394
10K
6.21 mi11:07:2942:026:4620:52
6:43
#5968
15K
9.32 mi11:28:201:02:536:4520:51
6:43
#5664
20K
12.43 mi11:49:291:24:026:4621:09
6:48
#5586
Half
13.11 mi11:54:031:28:366:464:34
6:42
#5552
25K
15.53 mi12:10:391:45:126:4616:36
6:51
#5481
30K
18.64 mi12:32:312:07:046:4921:52
7:02
#5298
20M
20.00 mi12:42:052:16:386:509:34
7:02
#5198
21M
21.00 mi12:49:282:24:016:517:23
7:23
#5073
35K
21.75 mi12:54:272:29:006:514:59
6:40
#4982
23M
23.00 mi13:03:102:37:436:518:43
6:58
#4850
24M
24.00 mi13:09:582:44:316:516:48
6:48
#4752
40K
24.85 mi13:15:582:50:316:526:00
7:01
#4711
25.2M
25.20 mi13:18:362:53:096:522:38
7:38
#4683
Finish
26.22 mi13:25:222:59:556:526:46
6:38
#4669
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6394582858285164(Top 18%)4777(Top 30%)4777(Top 213%)
10K6.21 mi3.10 mi5968+4265480+3485480+3485473(Top 19%)5048(Top 31%)5048(Top 225%)
15K9.32 mi3.11 mi5664+3045219+2615219+2615164(Top 18%)4777(Top 30%)4777(Top 213%)
20K12.43 mi3.11 mi5586+785138+815138+815345(Top 19%)4901(Top 30%)4901(Top 218%)
Half13.11 mi0.68 mi5552+345106+325106+325161(Top 18%)4756(Top 30%)4756(Top 212%)
25K15.53 mi2.42 mi5481+715039+675039+675226(Top 18%)4788(Top 30%)4788(Top 213%)
30K18.64 mi3.11 mi5298+1834867+1724867+1724918(Top 17%)4466(Top 28%)4466(Top 199%)
20M20.00 mi1.36 mi5198+1004768+994768+994326(Top 15%)3941(Top 24%)3941(Top 175%)
21M21.00 mi1.00 mi5073+1254661+1074661+1074011(Top 14%)3634(Top 23%)3634(Top 162%)
35K21.75 mi0.75 mi4982+914576+854576+853277(Top 12%)2993(Top 19%)2993(Top 133%)
23M23.00 mi1.25 mi4850+1324456+1204456+1203531(Top 12%)3201(Top 20%)3201(Top 142%)
24M24.00 mi1.00 mi4752+984366+904366+903497(Top 12%)3132(Top 19%)3132(Top 139%)
40K24.85 mi0.85 mi4711+414323+434323+433990(Top 14%)3478(Top 22%)3478(Top 155%)
25.2M25.20 mi0.35 mi4683+284294+294294+293995(Top 14%)3411(Top 21%)3411(Top 152%)
Finish26.22 mi1.02 mi4669+144278+164278+163547(Top 12%)3094(Top 19%)3094(Top 138%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21story building
+97ft-345ft

Overall

5164

Males

4777

M40-44

4777

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5473

Males

5048

M40-44

5048

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+67ft-78ft

Overall

5164

Males

4777

M40-44

4777

15K→20K

9.3 - 12.4 mi

Top 19%
×5story building
+106ft-86ft

Overall

5345

Males

4901

M40-44

4901

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+19ft-37ft

Overall

5161

Males

4756

M40-44

4756

Half→25K

13.1 - 15.5 mi

Top 18%
×4story building
+66ft-88ft

Overall

5226

Males

4788

M40-44

4788

25K→30K

15.5 - 18.6 mi

Top 17%
×9story building
+181ft-148ft

Overall

4918

Males

4466

M40-44

4466

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4326

Males

3941

M40-44

3941

20M→21M

20.0 - 21.0 mi

Top 14%
×8story building
+106ft-24ft

Overall

4011

Males

3634

M40-44

3634

21M→35K

21.0 - 21.8 mi

Top 12%
×7story building
+17ft-86ft

Overall

3277

Males

2993

M40-44

2993

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3531

Males

3201

M40-44

3201

23M→24M

23.0 - 24.0 mi

Top 12%
×6story building
+12ft-82ft

Overall

3497

Males

3132

M40-44

3132

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3990

Males

3478

M40-44

3478

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3995

Males

3411

M40-44

3411

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2story building
+22ft-21ft

Overall

3547

Males

3094

M40-44

3094

Passing Analysis

Category:
Athletes Passed
2205
Passed By
480
Net Change
+1725
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6394
5K → 10K47145+426#6394#5968
10K → 15K33026+304#5968#5664
15K → 20K16385+78#5664#5586
20K → Half4511+34#5586#5552
Half → 25K14675+71#5552#5481
25K → 30K25269+183#5481#5298
30K → 20M12121+100#5298#5198
20M → 21M14419+125#5198#5073
21M → 35K10110+91#5073#4982
35K → 23M15220+132#4982#4850
23M → 24M11113+98#4850#4752
24M → 40K7837+41#4752#4711
40K → 25.2M4214+28#4711#4683
25.2M → Finish4935+14#4683#4669
TOTALS2205480+1725
📊

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