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BOSTON MARATHON 2023

Timothy Constant

Bib: 2738•M

OR

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 28%
Gender (Male)
#0 / 15176
Top 42%
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
6:46/mi
21:00
↑ 97↓ 3451.5%
10K· 6.21 mi
6:49/mi
42:12
↑ 79↓ 1380.4%
15K· 9.32 mi
6:53/mi
1:03:36
↑ 67↓ 78
20K· 12.43 mi
6:51/mi
1:24:54
↑ 106↓ 860.1%
Half· 13.11 mi
6:45/mi
1:29:30
↑ 19↓ 370.5%
25K· 15.53 mi
6:55/mi
1:46:16
↑ 66↓ 880.2%
30K· 18.64 mi
8:42/mi
2:13:19
↑ 181↓ 1480.2%
20M
7:28/mi
2:23:28
↑ 64↓ 500.2%
21M
8:02/mi
2:31:30
↑ 106↓ 241.6%
35K· 21.75 mi
7:42/mi
2:37:16
↑ 17↓ 861.7%
23M
8:06/mi
2:47:24
↑ 23↓ 630.6%
24M
8:00/mi
2:55:24
↓ 821.3%
40K· 24.85 mi
8:26/mi
3:02:37
↓ 200.3%
25.2M
9:02/mi
3:05:44
↑ 13↓ 160.2%
Finish· 26.22 mi
8:08/mi
3:14:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:30
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:44:31
Pace7:58 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5421:006:4621:00
6:46
-
10K
6.21 mi10:43:0642:126:4721:12
6:49
+0:03
15K
9.32 mi11:04:301:03:366:4921:24
6:53
+0:04
20K
12.43 mi11:25:481:24:546:5021:18
6:51
-0:02
Half
13.11 mi11:30:241:29:306:504:36
6:45
-0:06
25K
15.53 mi11:47:101:46:166:5016:46
6:55
+0:10
30K
18.64 mi12:14:132:13:197:0927:03
8:42
+1:47
20M
20.00 mi12:24:222:23:287:1010:09
7:28
-1:14
21M
21.00 mi12:32:242:31:307:138:02
8:02
+0:34
35K
21.75 mi12:38:102:37:167:145:46
7:42
-0:20
23M
23.00 mi12:48:182:47:247:1710:08
8:06
+0:24
24M
24.00 mi12:56:182:55:247:198:00
8:00
-0:06
40K
24.85 mi13:03:313:02:377:217:13
8:26
+0:26
25.2M
25.20 mi13:06:383:05:447:223:07
9:02
+0:36
Finish
26.22 mi13:14:553:14:017:248:17
8:08
-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

6:45 /mi

Average Pace

7:24 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:16

55% of race

Time at Steady Pace

31:57

16% of race

Time at Slower Pace

55:48

29% of race

Average Pace: 7:24 /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 mi10:21:5421:006:4621:00
6:46
#4258
10K
6.21 mi10:43:0642:126:4721:12
6:49
#4900
15K
9.32 mi11:04:301:03:366:4921:24
6:53
#5210
20K
12.43 mi11:25:481:24:546:5021:18
6:51
#5158
Half
13.11 mi11:30:241:29:306:504:36
6:45
#5136
25K
15.53 mi11:47:101:46:166:5016:46
6:55
#5100
30K
18.64 mi12:14:132:13:197:0927:03
8:42
#6695
20M
20.00 mi12:24:222:23:287:1010:09
7:28
#6667
21M
21.00 mi12:32:242:31:307:138:02
8:02
#6670
35K
21.75 mi12:38:102:37:167:145:46
7:42
#6731
23M
23.00 mi12:48:182:47:247:1710:08
8:06
#6854
24M
24.00 mi12:56:182:55:247:198:00
8:00
#7001
40K
24.85 mi13:03:313:02:377:217:13
8:26
#7179
25.2M
25.20 mi13:06:383:05:447:223:07
9:02
#7245
Finish
26.22 mi13:14:553:14:017:248:17
8:08
#7450
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4258398739875887(Top 22%)5375(Top 35%)5375(Top 102%)
10K6.21 mi3.10 mi4900-6424551-5644551-5645535(Top 21%)5095(Top 34%)5095(Top 96%)
15K9.32 mi3.11 mi5210-3104828-2774828-2775887(Top 22%)5375(Top 35%)5375(Top 102%)
20K12.43 mi3.11 mi5158+524782+464782+464978(Top 19%)4620(Top 30%)4620(Top 87%)
Half13.11 mi0.68 mi5136+224765+174765+174830(Top 18%)4492(Top 30%)4492(Top 85%)
25K15.53 mi2.42 mi5100+364733+324733+325067(Top 19%)4684(Top 31%)4684(Top 89%)
30K18.64 mi3.11 mi6695-15955987-12545987-125415532(Top 58%)10275(Top 68%)10275(Top 194%)
20M20.00 mi1.36 mi6667+285951+365951+366591(Top 25%)5710(Top 38%)5710(Top 108%)
21M21.00 mi1.00 mi6670-35937+145937+147534(Top 28%)6202(Top 41%)6202(Top 117%)
35K21.75 mi0.75 mi6731-615984-475984-479928(Top 37%)7582(Top 50%)7582(Top 143%)
23M23.00 mi1.25 mi6854-1236056-726056-7210363(Top 39%)7653(Top 50%)7653(Top 145%)
24M24.00 mi1.00 mi7001-1476133-776133-7711193(Top 42%)7977(Top 53%)7977(Top 151%)
40K24.85 mi0.85 mi7179-1786242-1096242-10912923(Top 49%)8729(Top 58%)8729(Top 165%)
25.2M25.20 mi0.35 mi7245-666274-326274-3212648(Top 48%)8561(Top 56%)8561(Top 162%)
Finish26.22 mi1.02 mi7450-2056380-1066380-10612928(Top 49%)8725(Top 57%)8725(Top 165%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

5887

Males

5375

M18-39

5375

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5535

Males

5095

M18-39

5095

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

5887

Males

5375

M18-39

5375

15K→20K

9.3 - 12.4 mi

Top 19%
×5story building
+106ft-86ft

Overall

4978

Males

4620

M18-39

4620

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+19ft-37ft

Overall

4830

Males

4492

M18-39

4492

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

5067

Males

4684

M18-39

4684

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15532

Males

10275

M18-39

10275

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

6591

Males

5710

M18-39

5710

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7534

Males

6202

M18-39

6202

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9928

Males

7582

M18-39

7582

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10363

Males

7653

M18-39

7653

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11193

Males

7977

M18-39

7977

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12923

Males

8729

M18-39

8729

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12648

Males

8561

M18-39

8561

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

12928

Males

8725

M18-39

8725

Passing Analysis

Category:
Athletes Passed
641
Passed By
3833
Net Change
-3192
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4258
5K → 10K40682-642#4258#4900
10K → 15K36346-310#4900#5210
15K → 20K14088+52#5210#5158
20K → Half308+22#5158#5136
Half → 25K12084+36#5136#5100
25K → 30K61601-1595#5100#6695
30K → 20M7345+28#6695#6667
20M → 21M6467-3#6667#6670
21M → 35K2687-61#6670#6731
35K → 23M33156-123#6731#6854
23M → 24M22169-147#6854#7001
24M → 40K17195-178#7001#7179
40K → 25.2M1480-66#7179#7245
25.2M → Finish20225-205#7245#7450
TOTALS6413833-3192
📊

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