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BOSTON MARATHON 2023

Tim Nasr

Bib: 13681•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 (M50-54)
#0 / 2052
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
8:14/mi
25:36
↑ 97↓ 3451.5%
10K· 6.21 mi
8:21/mi
51:32
↑ 79↓ 1380.4%
15K· 9.32 mi
8:18/mi
1:17:19
↑ 67↓ 78
20K· 12.43 mi
8:47/mi
1:44:35
↑ 106↓ 860.1%
Half· 13.11 mi
8:18/mi
1:50:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:11:28
↑ 66↓ 880.2%
30K· 18.64 mi
8:48/mi
2:38:48
↑ 181↓ 1480.2%
20M
8:59/mi
2:51:00
↑ 64↓ 500.2%
21M
10:36/mi
3:01:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
3:08:14
↑ 17↓ 861.7%
23M
9:09/mi
3:19:41
↑ 23↓ 630.6%
24M
9:02/mi
3:28:43
↓ 821.3%
40K· 24.85 mi
9:25/mi
3:36:46
↓ 200.3%
25.2M
10:47/mi
3:40:29
↑ 13↓ 160.2%
Finish· 26.22 mi
8:47/mi
3:49:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:15
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time1:59:11
Pace9:06 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2125:368:1425:36
8:14
-
10K
6.21 mi11:20:1751:328:1825:56
8:21
+0:07
15K
9.32 mi11:46:041:17:198:1825:47
8:18
-0:03
20K
12.43 mi12:13:201:44:358:2527:16
8:47
+0:29
Half
13.11 mi12:19:001:50:158:255:40
8:18
-0:29
25K
15.53 mi12:40:132:11:288:2821:13
8:45
+0:27
30K
18.64 mi13:07:332:38:488:3127:20
8:48
+0:03
20M
20.00 mi13:19:452:51:008:3312:12
8:59
+0:11
21M
21.00 mi13:30:213:01:368:3910:36
10:36
+1:37
35K
21.75 mi13:36:593:08:148:396:38
8:52
-1:44
23M
23.00 mi13:48:263:19:418:4111:27
9:09
+0:17
24M
24.00 mi13:57:283:28:438:429:02
9:02
-0:07
40K
24.85 mi14:05:313:36:468:438:03
9:25
+0:23
25.2M
25.20 mi14:09:143:40:298:453:43
10:47
+1:22
Finish
26.22 mi14:18:113:49:268:458:57
8:47
-2:00

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

8:14 /mi

Average Pace

8:45 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:59

36% of race

Time at Steady Pace

2:04:05

54% of race

Time at Slower Pace

22:22

10% of race

Average Pace: 8:45 /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 mi10:54:2125:368:1425:36
8:14
#15719
10K
6.21 mi11:20:1751:328:1825:56
8:21
#16456
15K
9.32 mi11:46:041:17:198:1825:47
8:18
#16479
20K
12.43 mi12:13:201:44:358:2527:16
8:47
#17043
Half
13.11 mi12:19:001:50:158:255:40
8:18
#17016
25K
15.53 mi12:40:132:11:288:2821:13
8:45
#17104
30K
18.64 mi13:07:332:38:488:3127:20
8:48
#16885
20M
20.00 mi13:19:452:51:008:3312:12
8:59
#16829
21M
21.00 mi13:30:213:01:368:3910:36
10:36
#17082
35K
21.75 mi13:36:593:08:148:396:38
8:52
#17093
23M
23.00 mi13:48:263:19:418:4111:27
9:09
#17056
24M
24.00 mi13:57:283:28:438:429:02
9:02
#17066
40K
24.85 mi14:05:313:36:468:438:03
9:25
#17120
25.2M
25.20 mi14:09:143:40:298:453:43
10:47
#17199
Finish
26.22 mi14:18:113:49:268:458:57
8:47
#17218
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi15719105981059816518(Top 62%)10897(Top 72%)10897(Top 531%)
10K6.21 mi3.10 mi16456-73710880-28210880-28217216(Top 65%)11186(Top 74%)11186(Top 545%)
15K9.32 mi3.11 mi16479-2310883-310883-316518(Top 62%)10897(Top 72%)10897(Top 531%)
20K12.43 mi3.11 mi17043-56411070-18711070-18718535(Top 70%)11699(Top 77%)11699(Top 570%)
Half13.11 mi0.68 mi17016+2711053+1711053+1716490(Top 62%)10882(Top 72%)10882(Top 530%)
25K15.53 mi2.42 mi17104-8811077-2411077-2417661(Top 66%)11263(Top 74%)11263(Top 549%)
30K18.64 mi3.11 mi16885+21910976+10110976+10116044(Top 60%)10499(Top 69%)10499(Top 512%)
20M20.00 mi1.36 mi16829+5610932+4410932+4416398(Top 62%)10569(Top 70%)10569(Top 515%)
21M21.00 mi1.00 mi17082-25311023-9111023-9119876(Top 75%)11992(Top 79%)11992(Top 584%)
35K21.75 mi0.75 mi17093-1111017+611017+617258(Top 65%)10815(Top 71%)10815(Top 527%)
23M23.00 mi1.25 mi17056+3710981+3610981+3616749(Top 63%)10570(Top 70%)10570(Top 515%)
24M24.00 mi1.00 mi17066-1010964+1710964+1717370(Top 65%)10790(Top 71%)10790(Top 526%)
40K24.85 mi0.85 mi17120-5410973-910973-918002(Top 68%)11030(Top 73%)11030(Top 538%)
25.2M25.20 mi0.35 mi17199-7911000-2711000-2719875(Top 75%)11854(Top 78%)11854(Top 578%)
Finish26.22 mi1.02 mi17218-1911003-311003-316924(Top 64%)10575(Top 70%)10575(Top 515%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

16518

Males

10897

M50-54

10897

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17216

Males

11186

M50-54

11186

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

16518

Males

10897

M50-54

10897

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18535

Males

11699

M50-54

11699

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

16490

Males

10882

M50-54

10882

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17661

Males

11263

M50-54

11263

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

16044

Males

10499

M50-54

10499

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

16398

Males

10569

M50-54

10569

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

19876

Males

11992

M50-54

11992

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

17258

Males

10815

M50-54

10815

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16749

Males

10570

M50-54

10570

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

17370

Males

10790

M50-54

10790

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18002

Males

11030

M50-54

11030

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19875

Males

11854

M50-54

11854

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

16924

Males

10575

M50-54

10575

Passing Analysis

Category:
Athletes Passed
1168
Passed By
2667
Net Change
-1499
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15719
5K → 10K87824-737#15719#16456
10K → 15K179202-23#16456#16479
15K → 20K59623-564#16479#17043
20K → Half4114+27#17043#17016
Half → 25K92180-88#17016#17104
25K → 30K28263+219#17104#16885
30K → 20M10347+56#16885#16829
20M → 21M25278-253#16829#17082
21M → 35K4152-11#17082#17093
35K → 23M10265+37#17093#17056
23M → 24M6070-10#17056#17066
24M → 40K3791-54#17066#17120
40K → 25.2M1089-79#17120#17199
25.2M → Finish5069-19#17199#17218
TOTALS11682667-1499
📊

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