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BOSTON MARATHON 2023

Sebastien Darfeuille

Bib: 2633•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 16%
Masters (Masters Men)
#0 / 9891
Top 6%
Division (M40-44)
#0 / 2241
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:18
Rank: #2460
Start → 5K
20:18 | 6:32/mi
10K· 6.21 mi
40:14
Rank: #2353 (+107)
5K → 10K
19:56 | 6:25/mi
15K· 9.32 mi
1:00:23
Rank: #2433 (-80)
10K → 15K
20:09 | 6:29/mi
20K· 12.43 mi
1:20:54
Rank: #2504 (-71)
15K → 20K
20:31 | 6:36/mi
Half· 13.11 mi
1:25:16
Rank: #2478 (+26)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:41:14
Rank: #2501 (-23)
Half → 25K
15:58 | 6:35/mi
30K· 18.64 mi
2:02:16
Rank: #2516 (-15)
25K → 30K
21:02 | 6:46/mi
20M
2:11:28
Rank: #2491 (+25)
30K → 20M
9:12 | 6:46/mi
21M
2:18:37
Rank: #2494 (-3)
20M → 21M
7:09 | 7:09/mi
35K· 21.75 mi
2:23:35
Rank: #2485 (+9)
21M → 35K
4:58 | 6:38/mi
23M
2:32:21
Rank: #2489 (-4)
35K → 23M
8:46 | 7:00/mi
24M
2:39:12
Rank: #2530 (-41)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:45:11
Rank: #2569 (-39)
24M → 40K
5:59 | 7:00/mi
25.2M
2:47:39
Rank: #2559 (+10)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
2:54:14
Rank: #2519 (+40)
25.2M → Finish
6:35 | 6:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:16
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:28:58
Pace6:47 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1120:186:3220:18
6:32
-
10K
6.21 mi10:41:0740:146:2819:56
6:25
-0:07
15K
9.32 mi11:01:161:00:236:2920:09
6:29
+0:04
20K
12.43 mi11:21:471:20:546:3120:31
6:36
+0:07
Half
13.11 mi11:26:091:25:166:304:22
6:24
-0:12
25K
15.53 mi11:42:071:41:146:3115:58
6:35
+0:11
30K
18.64 mi12:03:092:02:166:3421:02
6:46
+0:11
20M
20.00 mi12:12:212:11:286:349:12
6:46
0:00
21M
21.00 mi12:19:302:18:376:367:09
7:09
+0:23
35K
21.75 mi12:24:282:23:356:364:58
6:38
-0:31
23M
23.00 mi12:33:142:32:216:378:46
7:00
+0:22
24M
24.00 mi12:40:052:39:126:386:51
6:51
-0:09
40K
24.85 mi12:46:042:45:116:395:59
7:00
+0:09
25.2M
25.20 mi12:48:322:47:396:392:28
7:09
+0:09
Finish
26.22 mi12:55:072:54:146:396:35
6:28
-0:41

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

6:24 /mi

Average Pace

6:39 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:37

94% of race

Time at Steady Pace

9:37

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:39 /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 mi10:21:1120:186:3220:18
6:32
#2460
10K
6.21 mi10:41:0740:146:2819:56
6:25
#2353
15K
9.32 mi11:01:161:00:236:2920:09
6:29
#2433
20K
12.43 mi11:21:471:20:546:3120:31
6:36
#2504
Half
13.11 mi11:26:091:25:166:304:22
6:24
#2478
25K
15.53 mi11:42:071:41:146:3115:58
6:35
#2501
30K
18.64 mi12:03:092:02:166:3421:02
6:46
#2516
20M
20.00 mi12:12:212:11:286:349:12
6:46
#2491
21M
21.00 mi12:19:302:18:376:367:09
7:09
#2494
35K
21.75 mi12:24:282:23:356:364:58
6:38
#2485
23M
23.00 mi12:33:142:32:216:378:46
7:00
#2489
24M
24.00 mi12:40:052:39:126:386:51
6:51
#2530
40K
24.85 mi12:46:042:45:116:395:59
7:00
#2569
25.2M
25.20 mi12:48:322:47:396:392:28
7:09
#2559
Finish
26.22 mi12:55:072:54:146:396:35
6:28
#2519
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2460234623462556(Top 10%)2451(Top 16%)2451(Top 109%)
10K6.21 mi3.10 mi2353+1072247+992247+992323(Top 9%)2224(Top 15%)2224(Top 99%)
15K9.32 mi3.11 mi2433-802327-802327-802556(Top 10%)2451(Top 16%)2451(Top 109%)
20K12.43 mi3.11 mi2504-712397-702397-702863(Top 11%)2731(Top 18%)2731(Top 122%)
Half13.11 mi0.68 mi2478+262373+242373+242242(Top 8%)2152(Top 14%)2152(Top 96%)
25K15.53 mi2.42 mi2501-232394-212394-212617(Top 10%)2505(Top 17%)2505(Top 112%)
30K18.64 mi3.11 mi2516-152407-132407-132822(Top 11%)2676(Top 18%)2676(Top 119%)
20M20.00 mi1.36 mi2491+252386+212386+212612(Top 10%)2469(Top 16%)2469(Top 110%)
21M21.00 mi1.00 mi2494-32388-22388-22831(Top 11%)2656(Top 18%)2656(Top 119%)
35K21.75 mi0.75 mi2485+92380+82380+83192(Top 12%)2977(Top 20%)2977(Top 133%)
23M23.00 mi1.25 mi2489-42382-22382-23775(Top 14%)3482(Top 23%)3482(Top 155%)
24M24.00 mi1.00 mi2530-412418-362418-363897(Top 15%)3556(Top 23%)3556(Top 159%)
40K24.85 mi0.85 mi2569-392452-342452-343805(Top 14%)3422(Top 23%)3422(Top 153%)
25.2M25.20 mi0.35 mi2559+102443+92443+92292(Top 9%)2125(Top 14%)2125(Top 95%)
Finish26.22 mi1.02 mi2519+402403+402403+402289(Top 9%)2117(Top 14%)2117(Top 94%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2556

Males

2451

M40-44

2451

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2323

Males

2224

M40-44

2224

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2556

Males

2451

M40-44

2451

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2863

Males

2731

M40-44

2731

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2242

Males

2152

M40-44

2152

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2617

Males

2505

M40-44

2505

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2822

Males

2676

M40-44

2676

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2612

Males

2469

M40-44

2469

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

2831

Males

2656

M40-44

2656

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3192

Males

2977

M40-44

2977

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3775

Males

3482

M40-44

3482

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3897

Males

3556

M40-44

3556

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3805

Males

3422

M40-44

3422

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2292

Males

2125

M40-44

2125

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2289

Males

2117

M40-44

2117

Passing Analysis

Category:
Athletes Passed
662
Passed By
721
Net Change
-59
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2460
5K → 10K18780+107#2460#2353
10K → 15K49129-80#2353#2433
15K → 20K38109-71#2433#2504
20K → Half282+26#2504#2478
Half → 25K4366-23#2478#2501
25K → 30K5772-15#2501#2516
30K → 20M4722+25#2516#2491
20M → 21M3841-3#2491#2494
21M → 35K2819+9#2494#2485
35K → 23M3640-4#2485#2489
23M → 24M1354-41#2489#2530
24M → 40K2059-39#2530#2569
40K → 25.2M2414+10#2569#2559
25.2M → Finish5414+40#2559#2519
TOTALS662721-59
📊

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