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BOSTON MARATHON 2023

Devin Senelick

Bib: 10860•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
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
8:00/mi
24:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
49:40
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:15:07
↑ 67↓ 78
20K· 12.43 mi
8:09/mi
1:40:27
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:46:01
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:06:34
↑ 66↓ 880.2%
30K· 18.64 mi
8:52/mi
2:34:07
↑ 181↓ 1480.2%
20M
9:04/mi
2:46:26
↑ 64↓ 500.2%
21M
9:26/mi
2:55:52
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
3:02:30
↑ 17↓ 861.7%
23M
8:52/mi
3:13:36
↑ 23↓ 630.6%
24M
8:48/mi
3:22:24
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:29:52
↓ 200.3%
25.2M
10:00/mi
3:33:19
↑ 13↓ 160.2%
Finish· 26.22 mi
8:14/mi
3:41:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:01
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time1:55:41
Pace8:49 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5124:508:0024:50
8:00
-
10K
6.21 mi11:18:4149:408:0024:50
8:00
0:00
15K
9.32 mi11:44:081:15:078:0425:27
8:11
+0:11
20K
12.43 mi12:09:281:40:278:0525:20
8:09
-0:02
Half
13.11 mi12:15:021:46:018:055:34
8:10
+0:01
25K
15.53 mi12:35:352:06:348:0920:33
8:29
+0:19
30K
18.64 mi13:03:082:34:078:1627:33
8:52
+0:23
20M
20.00 mi13:15:272:46:268:1912:19
9:04
+0:12
21M
21.00 mi13:24:532:55:528:229:26
9:26
+0:22
35K
21.75 mi13:31:313:02:308:236:38
8:52
-0:34
23M
23.00 mi13:42:373:13:368:2511:06
8:52
0:00
24M
24.00 mi13:51:253:22:248:268:48
8:48
-0:04
40K
24.85 mi13:58:533:29:528:277:28
8:44
-0:04
25.2M
25.20 mi14:02:203:33:198:283:27
10:00
+1:16
Finish
26.22 mi14:10:433:41:428:288:23
8:14
-1:46

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

8:00 /mi

Average Pace

8:28 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:24

52% of race

Time at Steady Pace

1:22:06

37% of race

Time at Slower Pace

25:12

11% of race

Average Pace: 8:27 /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 mi10:53:5124:508:0024:50
8:00
#13962
10K
6.21 mi11:18:4149:408:0024:50
8:00
#14339
15K
9.32 mi11:44:081:15:078:0425:27
8:11
#14812
20K
12.43 mi12:09:281:40:278:0525:20
8:09
#14740
Half
13.11 mi12:15:021:46:018:055:34
8:10
#14786
25K
15.53 mi12:35:352:06:348:0920:33
8:29
#14967
30K
18.64 mi13:03:082:34:078:1627:33
8:52
#15240
20M
20.00 mi13:15:272:46:268:1912:19
9:04
#15377
21M
21.00 mi13:24:532:55:528:229:26
9:26
#15348
35K
21.75 mi13:31:313:02:308:236:38
8:52
#15434
23M
23.00 mi13:42:373:13:368:2511:06
8:52
#15414
24M
24.00 mi13:51:253:22:248:268:48
8:48
#15443
40K
24.85 mi13:58:533:29:528:277:28
8:44
#15410
25.2M
25.20 mi14:02:203:33:198:283:27
10:00
#15447
Finish
26.22 mi14:10:433:41:428:288:23
8:14
#15367
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi139629936993615791(Top 59%)10609(Top 70%)10609(Top 471%)
10K6.21 mi3.10 mi14339-37710069-13310069-13314750(Top 55%)10223(Top 67%)10223(Top 454%)
15K9.32 mi3.11 mi14812-47310247-17810247-17815791(Top 59%)10609(Top 70%)10609(Top 471%)
20K12.43 mi3.11 mi14740+7210202+4510202+4514622(Top 55%)10130(Top 67%)10130(Top 450%)
Half13.11 mi0.68 mi14786-4610219-1710219-1715460(Top 58%)10477(Top 69%)10477(Top 465%)
25K15.53 mi2.42 mi14967-18110258-3910258-3916039(Top 60%)10553(Top 70%)10553(Top 469%)
30K18.64 mi3.11 mi15240-27310315-5710315-5716459(Top 62%)10675(Top 70%)10675(Top 474%)
20M20.00 mi1.36 mi15377-13710342-2710342-2716852(Top 63%)10765(Top 71%)10765(Top 478%)
21M21.00 mi1.00 mi15348+2910304+3810304+3815624(Top 59%)10185(Top 67%)10185(Top 452%)
35K21.75 mi0.75 mi15434-8610321-1710321-1717249(Top 65%)10806(Top 71%)10806(Top 480%)
23M23.00 mi1.25 mi15414+2010286+3510286+3515340(Top 58%)9956(Top 66%)9956(Top 442%)
24M24.00 mi1.00 mi15443-29102861028616170(Top 61%)10248(Top 68%)10248(Top 455%)
40K24.85 mi0.85 mi15410+3310256+3010256+3014687(Top 55%)9537(Top 63%)9537(Top 423%)
25.2M25.20 mi0.35 mi15447-3710265-910265-917334(Top 65%)10687(Top 70%)10687(Top 475%)
Finish26.22 mi1.02 mi15367+8010220+4510220+4513605(Top 51%)9064(Top 60%)9064(Top 402%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15791

Males

10609

M45-49

10609

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14750

Males

10223

M45-49

10223

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15791

Males

10609

M45-49

10609

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14622

Males

10130

M45-49

10130

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

15460

Males

10477

M45-49

10477

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

16039

Males

10553

M45-49

10553

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

16459

Males

10675

M45-49

10675

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16852

Males

10765

M45-49

10765

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15624

Males

10185

M45-49

10185

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

17249

Males

10806

M45-49

10806

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

15340

Males

9956

M45-49

9956

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

16170

Males

10248

M45-49

10248

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14687

Males

9537

M45-49

9537

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17334

Males

10687

M45-49

10687

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

13605

Males

9064

M45-49

9064

Passing Analysis

Category:
Athletes Passed
1146
Passed By
2551
Net Change
-1405
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13962
5K → 10K134511-377#13962#14339
10K → 15K64537-473#14339#14812
15K → 20K212140+72#14812#14740
20K → Half1460-46#14740#14786
Half → 25K93274-181#14786#14967
25K → 30K94367-273#14967#15240
30K → 20M45182-137#15240#15377
20M → 21M9667+29#15377#15348
21M → 35K28114-86#15348#15434
35K → 23M9676+20#15434#15414
23M → 24M5887-29#15414#15443
24M → 40K7340+33#15443#15410
40K → 25.2M2562-37#15410#15447
25.2M → Finish11434+80#15447#15367
TOTALS11462551-1405
📊

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