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BOSTON MARATHON 2023

Nathan Senner

Bib: 2675•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:32
Rank: #630
Start → 5K
18:32 | 5:58/mi
10K· 6.21 mi
36:51
Rank: #607 (+23)
5K → 10K
18:19 | 5:54/mi
15K· 9.32 mi
55:40
Rank: #666 (-59)
10K → 15K
18:49 | 6:03/mi
20K· 12.43 mi
1:14:53
Rank: #721 (-55)
15K → 20K
19:13 | 6:11/mi
Half· 13.11 mi
1:19:04
Rank: #729 (-8)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:34:37
Rank: #842 (-113)
Half → 25K
15:33 | 6:25/mi
30K· 18.64 mi
1:55:16
Rank: #974 (-132)
25K → 30K
20:39 | 6:39/mi
20M
2:04:26
Rank: #1041 (-67)
30K → 20M
9:10 | 6:45/mi
21M
2:11:43
Rank: #1101 (-60)
20M → 21M
7:17 | 7:17/mi
35K· 21.75 mi
2:16:19
Rank: #1088 (+13)
21M → 35K
4:36 | 6:09/mi
23M
2:24:40
Rank: #1110 (-22)
35K → 23M
8:21 | 6:40/mi
24M
2:30:58
Rank: #1121 (-11)
23M → 24M
6:18 | 6:18/mi
40K· 24.85 mi
2:36:31
Rank: #1117 (+4)
24M → 40K
5:33 | 6:29/mi
25.2M
2:38:58
Rank: #1120 (-3)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:45:37
Rank: #1155 (-35)
25.2M → Finish
6:39 | 6:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:04
Pace6:02 /mi
2nd Half
Distance13.11 mi
Time1:26:33
Pace6:36 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0618:325:5818:32
5:58
-
10K
6.21 mi10:37:2536:515:5618:19
5:54
-0:04
15K
9.32 mi10:56:1455:405:5818:49
6:03
+0:09
20K
12.43 mi11:15:271:14:536:0219:13
6:11
+0:08
Half
13.11 mi11:19:381:19:046:024:11
6:08
-0:03
25K
15.53 mi11:35:111:34:376:0515:33
6:25
+0:17
30K
18.64 mi11:55:501:55:166:1120:39
6:39
+0:14
20M
20.00 mi12:05:002:04:266:139:10
6:45
+0:06
21M
21.00 mi12:12:172:11:436:167:17
7:17
+0:32
35K
21.75 mi12:16:532:16:196:164:36
6:09
-1:08
23M
23.00 mi12:25:142:24:406:178:21
6:40
+0:31
24M
24.00 mi12:31:322:30:586:176:18
6:18
-0:22
40K
24.85 mi12:37:052:36:316:185:33
6:29
+0:11
25.2M
25.20 mi12:39:322:38:586:182:27
7:06
+0:37
Finish
26.22 mi12:46:112:45:376:196:39
6:32
-0:34

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

5:54 /mi

Average Pace

6:19 /mi

Slowest Pace

7:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:40

51% of race

Time at Steady Pace

34:03

21% of race

Time at Slower Pace

47:54

29% of race

Average Pace: 6:19 /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 mi10:19:0618:325:5818:32
5:58
#630
10K
6.21 mi10:37:2536:515:5618:19
5:54
#607
15K
9.32 mi10:56:1455:405:5818:49
6:03
#666
20K
12.43 mi11:15:271:14:536:0219:13
6:11
#721
Half
13.11 mi11:19:381:19:046:024:11
6:08
#729
25K
15.53 mi11:35:111:34:376:0515:33
6:25
#842
30K
18.64 mi11:55:501:55:166:1120:39
6:39
#974
20M
20.00 mi12:05:002:04:266:139:10
6:45
#1041
21M
21.00 mi12:12:172:11:436:167:17
7:17
#1101
35K
21.75 mi12:16:532:16:196:164:36
6:09
#1088
23M
23.00 mi12:25:142:24:406:178:21
6:40
#1110
24M
24.00 mi12:31:322:30:586:176:18
6:18
#1121
40K
24.85 mi12:37:052:36:316:185:33
6:29
#1117
25.2M
25.20 mi12:39:322:38:586:182:27
7:06
#1120
Finish
26.22 mi12:46:112:45:376:196:39
6:32
#1155
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi630586586837(Top 3%)791(Top 5%)791(Top 35%)
10K6.21 mi3.10 mi607+23564+22564+22590(Top 2%)547(Top 4%)547(Top 24%)
15K9.32 mi3.11 mi666-59623-59623-59837(Top 3%)791(Top 5%)791(Top 35%)
20K12.43 mi3.11 mi721-55678-55678-551016(Top 4%)966(Top 6%)966(Top 43%)
Half13.11 mi0.68 mi729-8686-8686-81116(Top 4%)1065(Top 7%)1065(Top 48%)
25K15.53 mi2.42 mi842-113795-109795-1091758(Top 7%)1682(Top 11%)1682(Top 75%)
30K18.64 mi3.11 mi974-132924-129924-1292156(Top 8%)2057(Top 14%)2057(Top 92%)
20M20.00 mi1.36 mi1041-67990-66990-662474(Top 9%)2345(Top 15%)2345(Top 105%)
21M21.00 mi1.00 mi1101-601048-581048-583481(Top 13%)3232(Top 21%)3232(Top 144%)
35K21.75 mi0.75 mi1088+131035+131035+131079(Top 4%)1027(Top 7%)1027(Top 46%)
23M23.00 mi1.25 mi1110-221058-231058-232022(Top 8%)1912(Top 13%)1912(Top 85%)
24M24.00 mi1.00 mi1121-111069-111069-111335(Top 5%)1263(Top 8%)1263(Top 56%)
40K24.85 mi0.85 mi1117+41065+41065+41487(Top 6%)1401(Top 9%)1401(Top 63%)
25.2M25.20 mi0.35 mi1120-31067-21067-22066(Top 8%)1922(Top 13%)1922(Top 86%)
Finish26.22 mi1.02 mi1155-351101-341101-342582(Top 10%)2368(Top 16%)2368(Top 106%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

837

Males

791

M40-44

791

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

590

Males

547

M40-44

547

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

837

Males

791

M40-44

791

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1016

Males

966

M40-44

966

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1116

Males

1065

M40-44

1065

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1758

Males

1682

M40-44

1682

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2156

Males

2057

M40-44

2057

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2474

Males

2345

M40-44

2345

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3481

Males

3232

M40-44

3232

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1079

Males

1027

M40-44

1027

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2022

Males

1912

M40-44

1912

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1335

Males

1263

M40-44

1263

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1487

Males

1401

M40-44

1401

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2066

Males

1922

M40-44

1922

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2582

Males

2368

M40-44

2368

Passing Analysis

Category:
Athletes Passed
151
Passed By
676
Net Change
-525
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#630
5K → 10K4118+23#630#607
10K → 15K463-59#607#666
15K → 20K964-55#666#721
20K → Half311-8#721#729
Half → 25K10123-113#729#842
25K → 30K5137-132#842#974
30K → 20M471-67#974#1041
20M → 21M767-60#1041#1101
21M → 35K163+13#1101#1088
35K → 23M1335-22#1088#1110
23M → 24M819-11#1110#1121
24M → 40K1612+4#1121#1117
40K → 25.2M710-3#1117#1120
25.2M → Finish843-35#1120#1155
TOTALS151676-525
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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