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BOSTON MARATHON 2023

Robert Bell

Bib: 12097•M

NC

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

Start
0:00:00
Race begins
5K· 3.11 mi
23:17
Rank: #9580
Start → 5K
23:17 | 7:30/mi
10K· 6.21 mi
46:47
Rank: #10302 (-722)
5K → 10K
23:30 | 7:34/mi
15K· 9.32 mi
1:10:21
Rank: #10483 (-181)
10K → 15K
23:34 | 7:35/mi
20K· 12.43 mi
1:34:43
Rank: #10889 (-406)
15K → 20K
24:22 | 7:51/mi
Half· 13.11 mi
1:40:01
Rank: #10967 (-78)
20K → Half
5:18 | 7:46/mi
25K· 15.53 mi
2:00:14
Rank: #11616 (-649)
Half → 25K
20:13 | 8:20/mi
30K· 18.64 mi
2:28:46
Rank: #13144 (-1528)
25K → 30K
28:32 | 9:11/mi
20M
2:41:46
Rank: #13732 (-588)
30K → 20M
13:00 | 9:34/mi
21M
2:51:57
Rank: #14122 (-390)
20M → 21M
10:11 | 10:11/mi
35K· 21.75 mi
2:58:52
Rank: #14340 (-218)
21M → 35K
6:55 | 9:15/mi
23M
3:11:34
Rank: #14855 (-515)
35K → 23M
12:42 | 10:09/mi
24M
3:21:56
Rank: #15307 (-452)
23M → 24M
10:22 | 10:22/mi
40K· 24.85 mi
3:31:00
Rank: #15699 (-392)
24M → 40K
9:04 | 10:36/mi
25.2M
3:34:53
Rank: #15837 (-138)
40K → 25.2M
3:53 | 11:16/mi
Finish· 26.22 mi
3:45:03
Rank: #16194 (-357)
25.2M → Finish
10:10 | 9:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:01
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time2:05:02
Pace9:32 /mi
📊Positive Split: 25.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4923:177:3023:17
7:30
-
10K
6.21 mi11:14:1946:477:3223:30
7:34
+0:04
15K
9.32 mi11:37:531:10:217:3323:34
7:35
+0:01
20K
12.43 mi12:02:151:34:437:3724:22
7:51
+0:16
Half
13.11 mi12:07:331:40:017:385:18
7:46
-0:05
25K
15.53 mi12:27:462:00:147:4420:13
8:20
+0:34
30K
18.64 mi12:56:182:28:467:5928:32
9:11
+0:51
20M
20.00 mi13:09:182:41:468:0513:00
9:34
+0:23
21M
21.00 mi13:19:292:51:578:1110:11
10:11
+0:37
35K
21.75 mi13:26:242:58:528:136:55
9:15
-0:56
23M
23.00 mi13:39:063:11:348:2012:42
10:09
+0:54
24M
24.00 mi13:49:283:21:568:2510:22
10:22
+0:13
40K
24.85 mi13:58:323:31:008:299:04
10:36
+0:14
25.2M
25.20 mi14:02:253:34:538:323:53
11:16
+0:40
Finish
26.22 mi14:12:353:45:038:3510:10
9:59
-1:17

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

7:30 /mi

Average Pace

8:35 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:14

53% of race

Time at Steady Pace

48:27

22% of race

Time at Slower Pace

56:22

25% of race

Average Pace: 8:35 /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 mi10:50:4923:177:3023:17
7:30
#9580
10K
6.21 mi11:14:1946:477:3223:30
7:34
#10302
15K
9.32 mi11:37:531:10:217:3323:34
7:35
#10483
20K
12.43 mi12:02:151:34:437:3724:22
7:51
#10889
Half
13.11 mi12:07:331:40:017:385:18
7:46
#10967
25K
15.53 mi12:27:462:00:147:4420:13
8:20
#11616
30K
18.64 mi12:56:182:28:467:5928:32
9:11
#13144
20M
20.00 mi13:09:182:41:468:0513:00
9:34
#13732
21M
21.00 mi13:19:292:51:578:1110:11
10:11
#14122
35K
21.75 mi13:26:242:58:528:136:55
9:15
#14340
23M
23.00 mi13:39:063:11:348:2012:42
10:09
#14855
24M
24.00 mi13:49:283:21:568:2510:22
10:22
#15307
40K
24.85 mi13:58:323:31:008:299:04
10:36
#15699
25.2M
25.20 mi14:02:253:34:538:323:53
11:16
#15837
Finish
26.22 mi14:12:353:45:038:3510:10
9:59
#16194
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi95807922792210882(Top 41%)8598(Top 57%)8598(Top 382%)
10K6.21 mi3.10 mi10302-7228318-3968318-39610992(Top 41%)8681(Top 57%)8681(Top 385%)
15K9.32 mi3.11 mi10483-1818416-988416-9810882(Top 41%)8598(Top 57%)8598(Top 382%)
20K12.43 mi3.11 mi10889-4068591-1758591-17512094(Top 45%)9059(Top 60%)9059(Top 402%)
Half13.11 mi0.68 mi10967-788637-468637-4612436(Top 47%)9272(Top 61%)9272(Top 412%)
25K15.53 mi2.42 mi11616-6498891-2548891-25415182(Top 57%)10214(Top 67%)10214(Top 454%)
30K18.64 mi3.11 mi13144-15289492-6019492-60118083(Top 68%)11363(Top 75%)11363(Top 505%)
20M20.00 mi1.36 mi13732-5889720-2289720-22819090(Top 72%)11721(Top 77%)11721(Top 520%)
21M21.00 mi1.00 mi14122-3909840-1209840-12018636(Top 70%)11482(Top 76%)11482(Top 510%)
35K21.75 mi0.75 mi14340-2189911-719911-7118900(Top 71%)11535(Top 76%)11535(Top 512%)
23M23.00 mi1.25 mi14855-51510090-17910090-17920402(Top 77%)12200(Top 80%)12200(Top 542%)
24M24.00 mi1.00 mi15307-45210240-15010240-15021692(Top 81%)12727(Top 84%)12727(Top 565%)
40K24.85 mi0.85 mi15699-39210374-13410374-13421450(Top 81%)12552(Top 83%)12552(Top 557%)
25.2M25.20 mi0.35 mi15837-13810430-5610430-5621007(Top 79%)12380(Top 82%)12380(Top 550%)
Finish26.22 mi1.02 mi16194-35710566-13610566-13621683(Top 81%)12707(Top 84%)12707(Top 564%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

10882

Males

8598

M45-49

8598

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10992

Males

8681

M45-49

8681

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

10882

Males

8598

M45-49

8598

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

12094

Males

9059

M45-49

9059

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

12436

Males

9272

M45-49

9272

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

15182

Males

10214

M45-49

10214

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

18083

Males

11363

M45-49

11363

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19090

Males

11721

M45-49

11721

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

18636

Males

11482

M45-49

11482

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

18900

Males

11535

M45-49

11535

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

20402

Males

12200

M45-49

12200

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21692

Males

12727

M45-49

12727

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21450

Males

12552

M45-49

12552

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21007

Males

12380

M45-49

12380

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

21683

Males

12707

M45-49

12707

Passing Analysis

Category:
Athletes Passed
425
Passed By
7038
Net Change
-6614
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9580
5K → 10K97818-722#9580#10302
10K → 15K124305-181#10302#10483
15K → 20K54460-406#10483#10889
20K → Half583-78#10889#10967
Half → 25K23672-649#10967#11616
25K → 30K201548-1528#11616#13144
30K → 20M13601-588#13144#13732
20M → 21M20410-390#13732#14122
21M → 35K13231-218#14122#14340
35K → 23M12527-515#14340#14855
23M → 24M14466-452#14855#15307
24M → 40K13405-392#15307#15699
40K → 25.2M3141-138#15699#15837
25.2M → Finish14371-357#15837#16194
TOTALS4257038-6614
📊

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