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BOSTON MARATHON 2023

Robert Fields

Bib: 30277•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:52
Rank: #23290
Start → 5K
30:52 | 9:56/mi
10K· 6.21 mi
1:03:45
Rank: #24178 (-888)
5K → 10K
32:53 | 10:35/mi
15K· 9.32 mi
1:37:15
Rank: #24513 (-335)
10K → 15K
33:30 | 10:47/mi
20K· 12.43 mi
2:12:17
Rank: #24670 (-157)
15K → 20K
35:02 | 11:17/mi
Half· 13.11 mi
2:20:27
Rank: #24782 (-112)
20K → Half
8:10 | 11:58/mi
25K· 15.53 mi
2:50:21
Rank: #24955 (-173)
Half → 25K
29:54 | 12:20/mi
30K· 18.64 mi
3:30:05
Rank: #25055 (-100)
25K → 30K
39:44 | 12:47/mi
20M
3:48:43
Rank: #25149 (-94)
30K → 20M
18:38 | 13:43/mi
21M
4:02:40
Rank: #25154 (-5)
20M → 21M
13:57 | 13:57/mi
35K· 21.75 mi
4:12:43
Rank: #25196 (-42)
21M → 35K
10:03 | 13:26/mi
23M
4:30:07
Rank: #25259 (-63)
35K → 23M
17:24 | 13:54/mi
24M
4:44:18
Rank: #25336 (-77)
23M → 24M
14:11 | 14:11/mi
40K· 24.85 mi
4:57:54
Rank: #25418 (-82)
24M → 40K
13:36 | 15:54/mi
25.2M
5:03:20
Rank: #25445 (-27)
40K → 25.2M
5:26 | 15:45/mi
Finish· 26.22 mi
5:16:34
Rank: #25480 (-35)
25.2M → Finish
13:14 | 12:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:27
Pace10:43 /mi
2nd Half
Distance13.11 mi
Time2:56:07
Pace13:26 /mi
📊Positive Split: 25.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2330:529:5630:52
9:56
-
10K
6.21 mi12:23:161:03:4510:1632:53
10:35
+0:39
15K
9.32 mi12:56:461:37:1510:2633:30
10:47
+0:12
20K
12.43 mi13:31:482:12:1710:3935:02
11:17
+0:30
Half
13.11 mi13:39:582:20:2710:438:10
11:58
+0:41
25K
15.53 mi14:09:522:50:2110:5829:54
12:20
+0:22
30K
18.64 mi14:49:363:30:0511:1639:44
12:47
+0:27
20M
20.00 mi15:08:143:48:4311:2618:38
13:43
+0:56
21M
21.00 mi15:22:114:02:4011:3313:57
13:57
+0:14
35K
21.75 mi15:32:144:12:4311:3710:03
13:26
-0:31
23M
23.00 mi15:49:384:30:0711:4517:24
13:54
+0:28
24M
24.00 mi16:03:494:44:1811:5114:11
14:11
+0:17
40K
24.85 mi16:17:254:57:5411:5913:36
15:54
+1:43
25.2M
25.20 mi16:22:515:03:2012:025:26
15:45
-0:09
Finish
26.22 mi16:36:055:16:3412:0513:14
12:59
-2:46

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

9:56 /mi

Average Pace

12:05 /mi

Slowest Pace

15:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:27

44% of race

Time at Steady Pace

1:51:33

35% of race

Time at Slower Pace

1:04:34

20% of race

Average Pace: 12:04 /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 mi11:50:2330:529:5630:52
9:56
#23290
10K
6.21 mi12:23:161:03:4510:1632:53
10:35
#24178
15K
9.32 mi12:56:461:37:1510:2633:30
10:47
#24513
20K
12.43 mi13:31:482:12:1710:3935:02
11:17
#24670
Half
13.11 mi13:39:582:20:2710:438:10
11:58
#24782
25K
15.53 mi14:09:522:50:2110:5829:54
12:20
#24955
30K
18.64 mi14:49:363:30:0511:1639:44
12:47
#25055
20M
20.00 mi15:08:143:48:4311:2618:38
13:43
#25149
21M
21.00 mi15:22:114:02:4011:3313:57
13:57
#25154
35K
21.75 mi15:32:144:12:4311:3710:03
13:26
#25196
23M
23.00 mi15:49:384:30:0711:4517:24
13:54
#25259
24M
24.00 mi16:03:494:44:1811:5114:11
14:11
#25336
40K
24.85 mi16:17:254:57:5411:5913:36
15:54
#25418
25.2M
25.20 mi16:22:515:03:2012:025:26
15:45
#25445
Finish
26.22 mi16:36:055:16:3412:0513:14
12:59
#25480
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi23290137271372724908(Top 94%)14477(Top 95%)14477(Top 1304%)
10K6.21 mi3.10 mi24178-88814173-44614173-44624823(Top 93%)14463(Top 95%)14463(Top 1303%)
15K9.32 mi3.11 mi24513-33514325-15214325-15224908(Top 94%)14477(Top 95%)14477(Top 1304%)
20K12.43 mi3.11 mi24670-15714377-5214377-5224975(Top 94%)14490(Top 95%)14490(Top 1305%)
Half13.11 mi0.68 mi24782-11214424-4714424-4725859(Top 97%)14849(Top 98%)14849(Top 1338%)
25K15.53 mi2.42 mi24955-17314496-7214496-7225411(Top 95%)14649(Top 97%)14649(Top 1320%)
30K18.64 mi3.11 mi25055-10014516-2014516-2025239(Top 95%)14515(Top 96%)14515(Top 1308%)
20M20.00 mi1.36 mi25149-9414551-3514551-3525672(Top 96%)14702(Top 97%)14702(Top 1325%)
21M21.00 mi1.00 mi25154-514543+814543+824993(Top 94%)14366(Top 95%)14366(Top 1294%)
35K21.75 mi0.75 mi25196-4214555-1214555-1225832(Top 97%)14753(Top 97%)14753(Top 1329%)
23M23.00 mi1.25 mi25259-6314573-1814573-1825761(Top 97%)14710(Top 97%)14710(Top 1325%)
24M24.00 mi1.00 mi25336-7714607-3414607-3426139(Top 98%)14889(Top 98%)14889(Top 1341%)
40K24.85 mi0.85 mi25418-8214645-3814645-3826389(Top 99%)15032(Top 99%)15032(Top 1354%)
25.2M25.20 mi0.35 mi25445-2714652-714652-726033(Top 98%)14831(Top 98%)14831(Top 1336%)
Finish26.22 mi1.02 mi25480-3514664-1214664-1225958(Top 98%)14786(Top 97%)14786(Top 1332%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

24908

Males

14477

M60-64

14477

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24823

Males

14463

M60-64

14463

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

24908

Males

14477

M60-64

14477

15K→20K

9.3 - 12.4 mi

Top 94%
×5stories
+106ft-86ft

Overall

24975

Males

14490

M60-64

14490

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

25859

Males

14849

M60-64

14849

Half→25K

13.1 - 15.5 mi

Top 95%
×4stories
+66ft-88ft

Overall

25411

Males

14649

M60-64

14649

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

25239

Males

14515

M60-64

14515

30K→20M

18.6 - 20.0 mi

Top 96%
×5stories
+64ft-50ft

Overall

25672

Males

14702

M60-64

14702

20M→21M

20.0 - 21.0 mi

Top 94%
×8stories
+106ft-24ft

Overall

24993

Males

14366

M60-64

14366

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

25832

Males

14753

M60-64

14753

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

25761

Males

14710

M60-64

14710

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

26139

Males

14889

M60-64

14889

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26389

Males

15032

M60-64

15032

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26033

Males

14831

M60-64

14831

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2stories
+22ft-21ft

Overall

25958

Males

14786

M60-64

14786

Passing Analysis

Category:
Athletes Passed
267
Passed By
2457
Net Change
-2190
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23290
5K → 10K14902-888#23290#24178
10K → 15K43378-335#24178#24513
15K → 20K49206-157#24513#24670
20K → Half1113-112#24670#24782
Half → 25K29202-173#24782#24955
25K → 30K53153-100#24955#25055
30K → 20M16110-94#25055#25149
20M → 21M2833-5#25149#25154
21M → 35K1052-42#25154#25196
35K → 23M1073-63#25196#25259
23M → 24M683-77#25259#25336
24M → 40K183-82#25336#25418
40K → 25.2M229-27#25418#25445
25.2M → Finish540-35#25445#25480
TOTALS2672457-2190
📊

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