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BOSTON MARATHON 2023

David Kesterson

Bib: 3166•M

TN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 16%
Division (M18-39)
#0 / 5285
Top 36%
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
20:59
Rank: #4155
Start → 5K
20:59 | 6:45/mi
10K· 6.21 mi
41:11
Rank: #3364 (+791)
5K → 10K
20:12 | 6:30/mi
15K· 9.32 mi
1:01:15
Rank: #2982 (+382)
10K → 15K
20:04 | 6:28/mi
20K· 12.43 mi
1:21:34
Rank: #2822 (+160)
15K → 20K
20:19 | 6:32/mi
Half· 13.11 mi
1:25:59
Rank: #2803 (+19)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:41:50
Rank: #2713 (+90)
Half → 25K
15:51 | 6:32/mi
30K· 18.64 mi
2:02:48
Rank: #2685 (+28)
25K → 30K
20:58 | 6:45/mi
20M
2:12:01
Rank: #2654 (+31)
30K → 20M
9:13 | 6:47/mi
21M
2:19:13
Rank: #2628 (+26)
20M → 21M
7:12 | 7:12/mi
35K· 21.75 mi
2:24:09
Rank: #2605 (+23)
21M → 35K
4:56 | 6:36/mi
23M
2:32:41
Rank: #2575 (+30)
35K → 23M
8:32 | 6:49/mi
24M
2:39:23
Rank: #2570 (+5)
23M → 24M
6:42 | 6:42/mi
40K· 24.85 mi
2:45:14
Rank: #2583 (-13)
24M → 40K
5:51 | 6:51/mi
25.2M
2:47:44
Rank: #2581 (+2)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:54:30
Rank: #2580 (+1)
25.2M → Finish
6:46 | 6:38/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:59
Pace6:34 /mi
2nd Half
Distance13.11 mi
Time1:28:31
Pace6:45 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3420:596:4520:59
6:45
-
10K
6.21 mi10:42:4641:116:3820:12
6:30
-0:15
15K
9.32 mi11:02:501:01:156:3420:04
6:28
-0:02
20K
12.43 mi11:23:091:21:346:3420:19
6:32
+0:04
Half
13.11 mi11:27:341:25:596:344:25
6:28
-0:04
25K
15.53 mi11:43:251:41:506:3315:51
6:32
+0:04
30K
18.64 mi12:04:232:02:486:3520:58
6:45
+0:13
20M
20.00 mi12:13:362:12:016:369:13
6:47
+0:02
21M
21.00 mi12:20:482:19:136:387:12
7:12
+0:25
35K
21.75 mi12:25:442:24:096:384:56
6:36
-0:36
23M
23.00 mi12:34:162:32:416:388:32
6:49
+0:13
24M
24.00 mi12:40:582:39:236:386:42
6:42
-0:07
40K
24.85 mi12:46:492:45:146:395:51
6:51
+0:09
25.2M
25.20 mi12:49:192:47:446:392:30
7:15
+0:24
Finish
26.22 mi12:56:052:54:306:406:46
6:38
-0:37

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

6:28 /mi

Average Pace

6:40 /mi

Slowest Pace

7:15 /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

2:44:48

94% of race

Time at Steady Pace

9:42

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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:22:3420:596:4520:59
6:45
#4155
10K
6.21 mi10:42:4641:116:3820:12
6:30
#3364
15K
9.32 mi11:02:501:01:156:3420:04
6:28
#2982
20K
12.43 mi11:23:091:21:346:3420:19
6:32
#2822
Half
13.11 mi11:27:341:25:596:344:25
6:28
#2803
25K
15.53 mi11:43:251:41:506:3315:51
6:32
#2713
30K
18.64 mi12:04:232:02:486:3520:58
6:45
#2685
20M
20.00 mi12:13:362:12:016:369:13
6:47
#2654
21M
21.00 mi12:20:482:19:136:387:12
7:12
#2628
35K
21.75 mi12:25:442:24:096:384:56
6:36
#2605
23M
23.00 mi12:34:162:32:416:388:32
6:49
#2575
24M
24.00 mi12:40:582:39:236:386:42
6:42
#2570
40K
24.85 mi12:46:492:45:146:395:51
6:51
#2583
25.2M
25.20 mi12:49:192:47:446:392:30
7:15
#2581
Finish
26.22 mi12:56:052:54:306:406:46
6:38
#2580
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4155389138912409(Top 9%)2312(Top 15%)2312(Top 44%)
10K6.21 mi3.10 mi3364+7913183+7083183+7082796(Top 11%)2672(Top 18%)2672(Top 51%)
15K9.32 mi3.11 mi2982+3822844+3392844+3392409(Top 9%)2312(Top 15%)2312(Top 44%)
20K12.43 mi3.11 mi2822+1602695+1492695+1492512(Top 9%)2405(Top 16%)2405(Top 46%)
Half13.11 mi0.68 mi2803+192682+132682+132613(Top 10%)2507(Top 17%)2507(Top 47%)
25K15.53 mi2.42 mi2713+902590+922590+922371(Top 9%)2271(Top 15%)2271(Top 43%)
30K18.64 mi3.11 mi2685+282565+252565+252676(Top 10%)2540(Top 17%)2540(Top 48%)
20M20.00 mi1.36 mi2654+312535+302535+302691(Top 10%)2545(Top 17%)2545(Top 48%)
21M21.00 mi1.00 mi2628+262514+212514+213070(Top 12%)2874(Top 19%)2874(Top 54%)
35K21.75 mi0.75 mi2605+232490+242490+242936(Top 11%)2747(Top 18%)2747(Top 52%)
23M23.00 mi1.25 mi2575+302462+282462+282728(Top 10%)2554(Top 17%)2554(Top 48%)
24M24.00 mi1.00 mi2570+52455+72455+73088(Top 12%)2863(Top 19%)2863(Top 54%)
40K24.85 mi0.85 mi2583-132466-112466-113009(Top 11%)2767(Top 18%)2767(Top 52%)
25.2M25.20 mi0.35 mi2581+22464+22464+22687(Top 10%)2473(Top 16%)2473(Top 47%)
Finish26.22 mi1.02 mi2580+12459+52459+53171(Top 12%)2848(Top 19%)2848(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2409

Males

2312

M18-39

2312

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2796

Males

2672

M18-39

2672

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2409

Males

2312

M18-39

2312

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2512

Males

2405

M18-39

2405

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2613

Males

2507

M18-39

2507

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2371

Males

2271

M18-39

2271

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2676

Males

2540

M18-39

2540

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2691

Males

2545

M18-39

2545

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3070

Males

2874

M18-39

2874

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2936

Males

2747

M18-39

2747

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2728

Males

2554

M18-39

2554

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3088

Males

2863

M18-39

2863

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3009

Males

2767

M18-39

2767

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2687

Males

2473

M18-39

2473

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3171

Males

2848

M18-39

2848

Passing Analysis

Category:
Athletes Passed
1899
Passed By
324
Net Change
+1575
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4155
5K → 10K80817+791#4155#3364
10K → 15K3886+382#3364#2982
15K → 20K17616+160#2982#2822
20K → Half267+19#2822#2803
Half → 25K10717+90#2803#2713
25K → 30K8860+28#2713#2685
30K → 20M5120+31#2685#2654
20M → 21M4216+26#2654#2628
21M → 35K318+23#2628#2605
35K → 23M6333+30#2605#2575
23M → 24M3631+5#2575#2570
24M → 40K2942-13#2570#2583
40K → 25.2M1715+2#2583#2581
25.2M → Finish3736+1#2581#2580
TOTALS1899324+1575
📊

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