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BOSTON MARATHON 2023

Ben Demeerleer

Bib: 3974•M

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 20%
Gender (Male)
#0 / 15176
Top 33%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
22:25
Rank: #7577
Start → 5K
22:25 | 7:13/mi
10K· 6.21 mi
44:13
Rank: #7204 (+373)
5K → 10K
21:48 | 7:01/mi
15K· 9.32 mi
1:06:15
Rank: #7155 (+49)
10K → 15K
22:02 | 7:06/mi
20K· 12.43 mi
1:29:07
Rank: #7348 (-193)
15K → 20K
22:52 | 7:22/mi
Half· 13.11 mi
1:34:05
Rank: #7384 (-36)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:51:47
Rank: #7343 (+41)
Half → 25K
17:42 | 7:18/mi
30K· 18.64 mi
2:14:03
Rank: #6940 (+403)
25K → 30K
22:16 | 7:10/mi
20M
2:23:40
Rank: #6724 (+216)
30K → 20M
9:37 | 7:05/mi
21M
2:31:03
Rank: #6538 (+186)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:36:12
Rank: #6439 (+99)
21M → 35K
5:09 | 6:53/mi
23M
2:44:51
Rank: #6203 (+236)
35K → 23M
8:39 | 6:55/mi
24M
2:51:31
Rank: #6004 (+199)
23M → 24M
6:40 | 6:40/mi
40K· 24.85 mi
2:57:11
Rank: #5799 (+205)
24M → 40K
5:40 | 6:38/mi
25.2M
2:59:40
Rank: #5728 (+71)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
3:05:54
Rank: #5445 (+283)
25.2M → Finish
6:14 | 6:07/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:34:05
Pace7:11 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:31:49
Pace7:00 /mi
📊Negative Split: 2.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:3622:257:1322:25
7:13
-
10K
6.21 mi10:45:2444:137:0721:48
7:01
-0:12
15K
9.32 mi11:07:261:06:157:0622:02
7:06
+0:05
20K
12.43 mi11:30:181:29:077:1022:52
7:22
+0:16
Half
13.11 mi11:35:161:34:057:114:58
7:17
-0:05
25K
15.53 mi11:52:581:51:477:1217:42
7:18
+0:01
30K
18.64 mi12:15:142:14:037:1122:16
7:10
-0:08
20M
20.00 mi12:24:512:23:407:119:37
7:05
-0:05
21M
21.00 mi12:32:142:31:037:127:23
7:23
+0:18
35K
21.75 mi12:37:232:36:127:115:09
6:53
-0:30
23M
23.00 mi12:46:022:44:517:108:39
6:55
+0:02
24M
24.00 mi12:52:422:51:317:096:40
6:40
-0:15
40K
24.85 mi12:58:222:57:117:085:40
6:38
-0:02
25.2M
25.20 mi13:00:512:59:407:082:29
7:12
+0:34
Finish
26.22 mi13:07:053:05:547:066:14
6:07
-1:05

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

6:07 /mi

Average Pace

7:06 /mi

Slowest Pace

7:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

32:22

17% of race

Time at Steady Pace

1:40:37

54% of race

Time at Slower Pace

52:55

28% of race

Average Pace: 7:05 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:23:3622:257:1322:25
7:13
#7577
10K
6.21 mi10:45:2444:137:0721:48
7:01
#7204
15K
9.32 mi11:07:261:06:157:0622:02
7:06
#7155
20K
12.43 mi11:30:181:29:077:1022:52
7:22
#7348
Half
13.11 mi11:35:161:34:057:114:58
7:17
#7384
25K
15.53 mi11:52:581:51:477:1217:42
7:18
#7343
30K
18.64 mi12:15:142:14:037:1122:16
7:10
#6940
20M
20.00 mi12:24:512:23:407:119:37
7:05
#6724
21M
21.00 mi12:32:142:31:037:127:23
7:23
#6538
35K
21.75 mi12:37:232:36:127:115:09
6:53
#6439
23M
23.00 mi12:46:022:44:517:108:39
6:55
#6203
24M
24.00 mi12:52:422:51:317:096:40
6:40
#6004
40K
24.85 mi12:58:222:57:117:085:40
6:38
#5799
25.2M
25.20 mi13:00:512:59:407:082:29
7:12
#5728
Finish
26.22 mi13:07:053:05:547:066:14
6:07
#5445
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7577670067007095(Top 27%)6308(Top 42%)6308(Top 119%)
10K6.21 mi3.10 mi7204+3736405+2956405+2956927(Top 26%)6183(Top 41%)6183(Top 117%)
15K9.32 mi3.11 mi7155+496370+356370+357095(Top 27%)6308(Top 42%)6308(Top 119%)
20K12.43 mi3.11 mi7348-1936502-1326502-1328198(Top 31%)7011(Top 46%)7011(Top 133%)
Half13.11 mi0.68 mi7384-366525-236525-238353(Top 31%)7092(Top 47%)7092(Top 134%)
25K15.53 mi2.42 mi7343+416486+396486+397276(Top 27%)6332(Top 42%)6332(Top 120%)
30K18.64 mi3.11 mi6940+4036165+3216165+3215312(Top 20%)4847(Top 32%)4847(Top 92%)
20M20.00 mi1.36 mi6724+2165995+1705995+1704491(Top 17%)4132(Top 27%)4132(Top 78%)
21M21.00 mi1.00 mi6538+1865842+1535842+1534078(Top 15%)3756(Top 25%)3756(Top 71%)
35K21.75 mi0.75 mi6439+995763+795763+794696(Top 18%)4261(Top 28%)4261(Top 81%)
23M23.00 mi1.25 mi6203+2365577+1865577+1863313(Top 12%)3082(Top 20%)3082(Top 58%)
24M24.00 mi1.00 mi6004+1995409+1685409+1682960(Top 11%)2752(Top 18%)2752(Top 52%)
40K24.85 mi0.85 mi5799+2055245+1645245+1642061(Top 8%)1931(Top 13%)1931(Top 37%)
25.2M25.20 mi0.35 mi5728+715181+645181+642583(Top 10%)2396(Top 16%)2396(Top 45%)
Finish26.22 mi1.02 mi5445+2834960+2214960+2211060(Top 4%)1009(Top 7%)1009(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7095

Males

6308

M18-39

6308

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

6927

Males

6183

M18-39

6183

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7095

Males

6308

M18-39

6308

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8198

Males

7011

M18-39

7011

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8353

Males

7092

M18-39

7092

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7276

Males

6332

M18-39

6332

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5312

Males

4847

M18-39

4847

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4491

Males

4132

M18-39

4132

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4078

Males

3756

M18-39

3756

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4696

Males

4261

M18-39

4261

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3313

Males

3082

M18-39

3082

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2960

Males

2752

M18-39

2752

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2061

Males

1931

M18-39

1931

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2583

Males

2396

M18-39

2396

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1060

Males

1009

M18-39

1009

Passing Analysis

Category:
Athletes Passed
2701
Passed By
569
Net Change
+2132
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7577
5K → 10K44976+373#7577#7204
10K → 15K159110+49#7204#7155
15K → 20K63256-193#7155#7348
20K → Half1349-36#7348#7384
Half → 25K10362+41#7384#7343
25K → 30K4096+403#7343#6940
30K → 20M2182+216#6940#6724
20M → 21M1871+186#6724#6538
21M → 35K1045+99#6538#6439
35K → 23M2371+236#6439#6203
23M → 24M1990+199#6203#6004
24M → 40K2061+205#6004#5799
40K → 25.2M710+71#5799#5728
25.2M → Finish2830+283#5728#5445
TOTALS2701569+2132
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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