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BOSTON MARATHON 2023

Guillaume Cossard

Bib: 26194•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 46%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
8:05/mi
25:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:35/mi
48:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:30/mi
1:12:01
↑ 67↓ 78
20K· 12.43 mi
7:42/mi
1:35:57
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:41:11
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:00:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:09/mi
2:25:59
↑ 181↓ 1480.2%
20M
8:26/mi
2:37:27
↑ 64↓ 500.2%
21M
8:56/mi
2:46:23
↑ 106↓ 241.6%
35K· 21.75 mi
8:21/mi
2:52:38
↑ 17↓ 861.7%
23M
8:28/mi
3:03:14
↑ 23↓ 630.6%
24M
8:06/mi
3:11:20
↓ 821.3%
40K· 24.85 mi
8:19/mi
3:18:27
↓ 200.3%
25.2M
8:51/mi
3:21:30
↑ 13↓ 160.2%
Finish· 26.22 mi
7:57/mi
3:29:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:11
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:48:25
Pace8:16 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:5725:078:0525:07
8:05
-
10K
6.21 mi12:09:3248:427:5023:35
7:35
-0:30
15K
9.32 mi12:32:511:12:017:4423:19
7:30
-0:05
20K
12.43 mi12:56:471:35:577:4323:56
7:42
+0:12
Half
13.11 mi13:02:011:41:117:435:14
7:40
-0:02
25K
15.53 mi13:21:312:00:417:4619:30
8:03
+0:23
30K
18.64 mi13:46:492:25:597:5025:18
8:09
+0:06
20M
20.00 mi13:58:172:37:277:5211:28
8:26
+0:17
21M
21.00 mi14:07:132:46:237:558:56
8:56
+0:30
35K
21.75 mi14:13:282:52:387:566:15
8:21
-0:35
23M
23.00 mi14:24:043:03:147:5810:36
8:28
+0:07
24M
24.00 mi14:32:103:11:207:588:06
8:06
-0:22
40K
24.85 mi14:39:173:18:277:597:07
8:19
+0:13
25.2M
25.20 mi14:42:203:21:308:003:03
8:51
+0:32
Finish
26.22 mi14:50:263:29:368:008:06
7:57
-0:54

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

7:30 /mi

Average Pace

8:00 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:11

77% of race

Time at Steady Pace

35:26

17% of race

Time at Slower Pace

11:59

6% of race

Average Pace: 8:00 /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 mi11:45:5725:078:0525:07
8:05
#14576
10K
6.21 mi12:09:3248:427:5023:35
7:35
#13042
15K
9.32 mi12:32:511:12:017:4423:19
7:30
#12018
20K
12.43 mi12:56:471:35:577:4323:56
7:42
#11696
Half
13.11 mi13:02:011:41:117:435:14
7:40
#11695
25K
15.53 mi13:21:312:00:417:4619:30
8:03
#11896
30K
18.64 mi13:46:492:25:597:5025:18
8:09
#11861
20M
20.00 mi13:58:172:37:277:5211:28
8:26
#11985
21M
21.00 mi14:07:132:46:237:558:56
8:56
#12040
35K
21.75 mi14:13:282:52:387:566:15
8:21
#12138
23M
23.00 mi14:24:043:03:147:5810:36
8:28
#12191
24M
24.00 mi14:32:103:11:207:588:06
8:06
#12182
40K
24.85 mi14:39:173:18:277:597:07
8:19
#12158
25.2M
25.20 mi14:42:203:21:308:003:03
8:51
#12132
Finish
26.22 mi14:50:263:29:368:008:06
7:57
#12122
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi14576101821018210213(Top 38%)8261(Top 54%)8261(Top 156%)
10K6.21 mi3.10 mi13042+15349555+6279555+62711230(Top 42%)8768(Top 58%)8768(Top 166%)
15K9.32 mi3.11 mi12018+10249098+4579098+45710213(Top 38%)8261(Top 54%)8261(Top 156%)
20K12.43 mi3.11 mi11696+3228938+1608938+16010950(Top 41%)8557(Top 56%)8557(Top 162%)
Half13.11 mi0.68 mi11695+18942-48942-411593(Top 44%)8906(Top 59%)8906(Top 169%)
25K15.53 mi2.42 mi11896-2019005-639005-6313069(Top 49%)9381(Top 62%)9381(Top 178%)
30K18.64 mi3.11 mi11861+358946+598946+5911932(Top 45%)8770(Top 58%)8770(Top 166%)
20M20.00 mi1.36 mi11985-1248981-358981-3513221(Top 50%)9222(Top 61%)9222(Top 174%)
21M21.00 mi1.00 mi12040-558995-148995-1413001(Top 49%)9034(Top 60%)9034(Top 171%)
35K21.75 mi0.75 mi12138-989009-149009-1414389(Top 54%)9584(Top 63%)9584(Top 181%)
23M23.00 mi1.25 mi12191-539013-49013-412970(Top 49%)8897(Top 59%)8897(Top 168%)
24M24.00 mi1.00 mi12182+98986+278986+2711918(Top 45%)8359(Top 55%)8359(Top 158%)
40K24.85 mi0.85 mi12158+248951+358951+3512189(Top 46%)8399(Top 55%)8399(Top 159%)
25.2M25.20 mi0.35 mi12132+268937+148937+1411536(Top 43%)8050(Top 53%)8050(Top 152%)
Finish26.22 mi1.02 mi12122+108913+248913+2411713(Top 44%)8146(Top 54%)8146(Top 154%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10213

Males

8261

M18-39

8261

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11230

Males

8768

M18-39

8768

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10213

Males

8261

M18-39

8261

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10950

Males

8557

M18-39

8557

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

11593

Males

8906

M18-39

8906

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13069

Males

9381

M18-39

9381

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

11932

Males

8770

M18-39

8770

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

13221

Males

9222

M18-39

9222

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13001

Males

9034

M18-39

9034

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14389

Males

9584

M18-39

9584

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

12970

Males

8897

M18-39

8897

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

11918

Males

8359

M18-39

8359

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12189

Males

8399

M18-39

8399

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11536

Males

8050

M18-39

8050

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

11713

Males

8146

M18-39

8146

Passing Analysis

Category:
Athletes Passed
3776
Passed By
1322
Net Change
+2454
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14576
5K → 10K156127+1534#14576#13042
10K → 15K103410+1024#13042#12018
15K → 20K36341+322#12018#11696
20K → Half2726+1#11696#11695
Half → 25K83284-201#11695#11896
25K → 30K207172+35#11896#11861
30K → 20M70194-124#11861#11985
20M → 21M68123-55#11985#12040
21M → 35K24122-98#12040#12138
35K → 23M70123-53#12138#12191
23M → 24M6859+9#12191#12182
24M → 40K7450+24#12182#12158
40K → 25.2M4317+26#12158#12132
25.2M → Finish8474+10#12132#12122
TOTALS37761322+2454
📊

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