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BOSTON MARATHON 2023

Calvin Cestari

Bib: 26696•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
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
10:36/mi
32:56
↑ 97↓ 3451.5%
10K· 6.21 mi
10:35/mi
1:05:49
↑ 79↓ 1380.4%
15K· 9.32 mi
11:14/mi
1:40:44
↑ 67↓ 78
20K· 12.43 mi
10:23/mi
2:13:01
↑ 106↓ 860.1%
Half· 13.11 mi
9:49/mi
2:19:43
↑ 19↓ 370.5%
25K· 15.53 mi
10:28/mi
2:45:05
↑ 66↓ 880.2%
30K· 18.64 mi
10:05/mi
3:16:24
↑ 181↓ 1480.2%
20M
10:28/mi
3:30:38
↑ 64↓ 500.2%
21M
11:00/mi
3:41:38
↑ 106↓ 241.6%
35K· 21.75 mi
10:00/mi
3:49:07
↑ 17↓ 861.7%
23M
10:15/mi
4:01:57
↑ 23↓ 630.6%
24M
10:17/mi
4:12:14
↓ 821.3%
40K· 24.85 mi
10:51/mi
4:21:31
↓ 200.3%
25.2M
10:38/mi
4:25:11
↑ 13↓ 160.2%
Finish· 26.22 mi
9:20/mi
4:34:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:19:43
Pace10:39 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:14:59
Pace10:18 /mi
📊Negative Split: 3.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:3132:5610:3632:56
10:36
-
10K
6.21 mi12:27:241:05:4910:3632:53
10:35
-0:01
15K
9.32 mi13:02:191:40:4410:4834:55
11:14
+0:39
20K
12.43 mi13:34:362:13:0110:4232:17
10:23
-0:51
Half
13.11 mi13:41:182:19:4310:396:42
9:49
-0:34
25K
15.53 mi14:06:402:45:0510:3825:22
10:28
+0:39
30K
18.64 mi14:37:593:16:2410:3231:19
10:05
-0:23
20M
20.00 mi14:52:133:30:3810:3214:14
10:28
+0:23
21M
21.00 mi15:03:133:41:3810:3311:00
11:00
+0:32
35K
21.75 mi15:10:423:49:0710:327:29
10:00
-1:00
23M
23.00 mi15:23:324:01:5710:3112:50
10:15
+0:15
24M
24.00 mi15:33:494:12:1410:3110:17
10:17
+0:02
40K
24.85 mi15:43:064:21:3110:319:17
10:51
+0:34
25.2M
25.20 mi15:46:464:25:1110:313:40
10:38
-0:13
Finish
26.22 mi15:56:174:34:4210:299:31
9:20
-1:18

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

9:20 /mi

Average Pace

10:29 /mi

Slowest Pace

11:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:01

20% of race

Time at Steady Pace

2:44:29

60% of race

Time at Slower Pace

55:12

20% of race

Average Pace: 10:29 /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 mi11:54:3132:5610:3632:56
10:36
#24947
10K
6.21 mi12:27:241:05:4910:3632:53
10:35
#24887
15K
9.32 mi13:02:191:40:4410:4834:55
11:14
#25149
20K
12.43 mi13:34:362:13:0110:4232:17
10:23
#24769
Half
13.11 mi13:41:182:19:4310:396:42
9:49
#24685
25K
15.53 mi14:06:402:45:0510:3825:22
10:28
#24406
30K
18.64 mi14:37:593:16:2410:3231:19
10:05
#23881
20M
20.00 mi14:52:133:30:3810:3214:14
10:28
#23717
21M
21.00 mi15:03:133:41:3810:3311:00
11:00
#23584
35K
21.75 mi15:10:423:49:0710:327:29
10:00
#23510
23M
23.00 mi15:23:324:01:5710:3112:50
10:15
#23386
24M
24.00 mi15:33:494:12:1410:3110:17
10:17
#23311
40K
24.85 mi15:43:064:21:3110:319:17
10:51
#23270
25.2M
25.20 mi15:46:464:25:1110:313:40
10:38
#23204
Finish
26.22 mi15:56:174:34:4210:299:31
9:20
#23084
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24947145171451725459(Top 96%)14717(Top 97%)14717(Top 278%)
10K6.21 mi3.10 mi24887+6014492+2514492+2524821(Top 93%)14461(Top 95%)14461(Top 274%)
15K9.32 mi3.11 mi25149-26214603-11114603-11125459(Top 96%)14717(Top 97%)14717(Top 278%)
20K12.43 mi3.11 mi24769+38014423+18014423+18023635(Top 89%)13909(Top 92%)13909(Top 263%)
Half13.11 mi0.68 mi24685+8414381+4214381+4222907(Top 86%)13582(Top 89%)13582(Top 257%)
25K15.53 mi2.42 mi24406+27914247+13414247+13423124(Top 87%)13647(Top 90%)13647(Top 258%)
30K18.64 mi3.11 mi23881+52514010+23714010+23721237(Top 80%)12733(Top 84%)12733(Top 241%)
20M20.00 mi1.36 mi23717+16413920+9013920+9021673(Top 81%)12860(Top 85%)12860(Top 243%)
21M21.00 mi1.00 mi23584+13313852+6813852+6820829(Top 78%)12443(Top 82%)12443(Top 235%)
35K21.75 mi0.75 mi23510+7413816+3613816+3621277(Top 80%)12620(Top 83%)12620(Top 239%)
23M23.00 mi1.25 mi23386+12413744+7213744+7220713(Top 78%)12342(Top 81%)12342(Top 234%)
24M24.00 mi1.00 mi23311+7513702+4213702+4221522(Top 81%)12645(Top 83%)12645(Top 239%)
40K24.85 mi0.85 mi23270+4113672+3013672+3022052(Top 83%)12858(Top 85%)12858(Top 243%)
25.2M25.20 mi0.35 mi23204+6613630+4213630+4219502(Top 73%)11710(Top 77%)11710(Top 222%)
Finish26.22 mi1.02 mi23084+12013575+5513575+5519518(Top 73%)11763(Top 78%)11763(Top 223%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25459

Males

14717

M18-39

14717

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

24821

Males

14461

M18-39

14461

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25459

Males

14717

M18-39

14717

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23635

Males

13909

M18-39

13909

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

22907

Males

13582

M18-39

13582

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23124

Males

13647

M18-39

13647

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

21237

Males

12733

M18-39

12733

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

21673

Males

12860

M18-39

12860

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20829

Males

12443

M18-39

12443

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21277

Males

12620

M18-39

12620

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20713

Males

12342

M18-39

12342

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

21522

Males

12645

M18-39

12645

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22052

Males

12858

M18-39

12858

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19502

Males

11710

M18-39

11710

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

19518

Males

11763

M18-39

11763

Passing Analysis

Category:
Athletes Passed
2364
Passed By
501
Net Change
+1863
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24947
5K → 10K219159+60#24947#24887
10K → 15K36298-262#24887#25149
15K → 20K3866+380#25149#24769
20K → Half851+84#24769#24685
Half → 25K2834+279#24685#24406
25K → 30K5272+525#24406#23881
30K → 20M1662+164#23881#23717
20M → 21M1352+133#23717#23584
21M → 35K740+74#23584#23510
35K → 23M1273+124#23510#23386
23M → 24M827+75#23386#23311
24M → 40K5615+41#23311#23270
40K → 25.2M660+66#23270#23204
25.2M → Finish1222+120#23204#23084
TOTALS2364501+1863
📊

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