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BOSTON MARATHON 2025

Etienne Grenon

Bib: 10157•M

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 30%
Gender (Male)
#0 / 16105
Top 43%
Masters (Masters Men)
#0 / 10463
Top 31%
Division (M45-49)
#0 / 2386
Top 45%
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
7:01/mi
21:49
↑ 97↓ 3451.5%
10K· 6.21 mi
6:56/mi
43:22
↑ 79↓ 1380.4%
15K· 9.32 mi
7:00/mi
1:05:06
↑ 67↓ 78
20K· 12.43 mi
7:09/mi
1:27:20
↑ 106↓ 860.1%
Half· 13.11 mi
7:08/mi
1:32:12
↑ 19↓ 370.5%
25K· 15.53 mi
7:32/mi
1:50:28
↑ 66↓ 880.2%
30K· 18.64 mi
7:51/mi
2:14:51
↑ 181↓ 1480.2%
20M
8:06/mi
2:25:51
↑ 64↓ 500.2%
21M
8:27/mi
2:34:18
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:40:07
↑ 17↓ 861.7%
23M
8:01/mi
2:50:09
↑ 23↓ 630.6%
24M
7:37/mi
2:57:46
↓ 821.3%
40K· 24.85 mi
7:50/mi
3:04:28
↓ 200.3%
25.2M
8:25/mi
3:07:22
↑ 13↓ 160.2%
Finish· 26.22 mi
7:39/mi
3:15:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:12
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:42:58
Pace7:51 /mi
📊Positive Split: 11.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3021:497:0121:49
7:01
-
10K
6.21 mi11:09:0343:226:5921:33
6:56
-0:05
15K
9.32 mi11:30:471:05:066:5921:44
7:00
+0:04
20K
12.43 mi11:53:011:27:207:0222:14
7:09
+0:09
Half
13.11 mi11:57:531:32:127:024:52
7:08
-0:01
25K
15.53 mi12:16:091:50:287:0718:16
7:32
+0:24
30K
18.64 mi12:40:322:14:517:1424:23
7:51
+0:19
20M
20.00 mi12:51:322:25:517:1811:00
8:06
+0:15
21M
21.00 mi12:59:592:34:187:218:27
8:27
+0:21
35K
21.75 mi13:05:482:40:077:225:49
7:46
-0:41
23M
23.00 mi13:15:502:50:097:2410:02
8:01
+0:15
24M
24.00 mi13:23:272:57:467:247:37
7:37
-0:24
40K
24.85 mi13:30:093:04:287:256:42
7:50
+0:13
25.2M
25.20 mi13:33:033:07:227:262:54
8:25
+0:35
Finish
26.22 mi13:40:513:15:107:277:48
7:39
-0:46

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

6:56 /mi

Average Pace

7:27 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:12

47% of race

Time at Steady Pace

1:10:35

36% of race

Time at Slower Pace

32:23

17% of race

Average Pace: 7:27 /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 mi10:47:3021:497:0121:49
7:01
#7993
10K
6.21 mi11:09:0343:226:5921:33
6:56
#7712
15K
9.32 mi11:30:471:05:066:5921:44
7:00
#7654
20K
12.43 mi11:53:011:27:207:0222:14
7:09
#7676
Half
13.11 mi11:57:531:32:127:024:52
7:08
#7701
25K
15.53 mi12:16:091:50:287:0718:16
7:32
#7994
30K
18.64 mi12:40:322:14:517:1424:23
7:51
#8291
20M
20.00 mi12:51:322:25:517:1811:00
8:06
#8474
21M
21.00 mi12:59:592:34:187:218:27
8:27
#8530
35K
21.75 mi13:05:482:40:077:225:49
7:46
#8583
23M
23.00 mi13:15:502:50:097:2410:02
8:01
#8621
24M
24.00 mi13:23:272:57:467:247:37
7:37
#8582
40K
24.85 mi13:30:093:04:287:256:42
7:50
#8560
25.2M
25.20 mi13:33:033:07:227:262:54
8:25
#8524
Finish
26.22 mi13:40:513:15:107:277:48
7:39
#8607
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7993699569957602(Top 27%)6684(Top 42%)6684(Top 280%)
10K6.21 mi3.10 mi7712+2816800+1956800+1957515(Top 26%)6654(Top 41%)6654(Top 279%)
15K9.32 mi3.11 mi7654+586743+576743+577602(Top 27%)6684(Top 42%)6684(Top 280%)
20K12.43 mi3.11 mi7676-226750-76750-77861(Top 28%)6784(Top 42%)6784(Top 284%)
Half13.11 mi0.68 mi7701-256764-146764-148521(Top 30%)7204(Top 45%)7204(Top 302%)
25K15.53 mi2.42 mi7994-2936922-1586922-15810222(Top 36%)7991(Top 50%)7991(Top 335%)
30K18.64 mi3.11 mi8291-2977052-1307052-13010263(Top 36%)7817(Top 49%)7817(Top 328%)
20M20.00 mi1.36 mi8474-1837134-827134-8211038(Top 39%)8037(Top 50%)8037(Top 337%)
21M21.00 mi1.00 mi8530-567128+67128+610133(Top 36%)7430(Top 46%)7430(Top 311%)
35K21.75 mi0.75 mi8583-537139-117139-1110569(Top 37%)7638(Top 47%)7638(Top 320%)
23M23.00 mi1.25 mi8621-387121+187121+1810088(Top 36%)7273(Top 45%)7273(Top 305%)
24M24.00 mi1.00 mi8582+397066+557066+558519(Top 30%)6395(Top 40%)6395(Top 268%)
40K24.85 mi0.85 mi8560+227012+547012+548990(Top 32%)6514(Top 40%)6514(Top 273%)
25.2M25.20 mi0.35 mi8524+366971+416971+418206(Top 29%)6030(Top 37%)6030(Top 253%)
Finish26.22 mi1.02 mi8607-836993-226993-2210314(Top 36%)7144(Top 44%)7144(Top 299%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7602

Males

6684

M45-49

6684

5K→10K

3.1 - 6.2 mi

Top 26%
×5story building
+79ft-138ft

Overall

7515

Males

6654

M45-49

6654

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7602

Males

6684

M45-49

6684

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7861

Males

6784

M45-49

6784

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

8521

Males

7204

M45-49

7204

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10222

Males

7991

M45-49

7991

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

10263

Males

7817

M45-49

7817

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11038

Males

8037

M45-49

8037

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

10133

Males

7430

M45-49

7430

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10569

Males

7638

M45-49

7638

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

10088

Males

7273

M45-49

7273

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8519

Males

6395

M45-49

6395

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8990

Males

6514

M45-49

6514

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8206

Males

6030

M45-49

6030

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

10314

Males

7144

M45-49

7144

Passing Analysis

Category:
Athletes Passed
1408
Passed By
2022
Net Change
-614
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7993
5K → 10K37089+281#7993#7712
10K → 15K159101+58#7712#7654
15K → 20K137159-22#7654#7676
20K → Half1540-25#7676#7701
Half → 25K52345-293#7701#7994
25K → 30K110407-297#7994#8291
30K → 20M52235-183#8291#8474
20M → 21M69125-56#8474#8530
21M → 35K4598-53#8530#8583
35K → 23M107145-38#8583#8621
23M → 24M9859+39#8621#8582
24M → 40K9270+22#8582#8560
40K → 25.2M5216+36#8560#8524
25.2M → Finish50133-83#8524#8607
TOTALS14082022-614
📊

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