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BOSTON MARATHON 2023

Rob Clause

Bib: 10591•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 (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:33
Rank: #10352
Start → 5K
23:33 | 7:35/mi
10K· 6.21 mi
46:42
Rank: #10184 (+168)
5K → 10K
23:09 | 7:27/mi
15K· 9.32 mi
1:10:27
Rank: #10572 (-388)
10K → 15K
23:45 | 7:39/mi
20K· 12.43 mi
1:35:21
Rank: #11283 (-711)
15K → 20K
24:54 | 8:01/mi
Half· 13.11 mi
1:40:48
Rank: #11446 (-163)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:01:08
Rank: #12162 (-716)
Half → 25K
20:20 | 8:23/mi
30K· 18.64 mi
2:29:40
Rank: #13499 (-1337)
25K → 30K
28:32 | 9:11/mi
20M
2:42:24
Rank: #14002 (-503)
30K → 20M
12:44 | 9:22/mi
21M
2:52:51
Rank: #14416 (-414)
20M → 21M
10:27 | 10:27/mi
35K· 21.75 mi
2:59:35
Rank: #14562 (-146)
21M → 35K
6:44 | 9:00/mi
23M
3:11:38
Rank: #14877 (-315)
35K → 23M
12:03 | 9:37/mi
24M
3:20:51
Rank: #15026 (-149)
23M → 24M
9:13 | 9:13/mi
40K· 24.85 mi
3:29:03
Rank: #15187 (-161)
24M → 40K
8:12 | 9:35/mi
25.2M
3:32:39
Rank: #15276 (-89)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:42:04
Rank: #15461 (-185)
25.2M → Finish
9:25 | 9:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:48
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time2:01:16
Pace9:15 /mi
📊Positive Split: 20.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4123:337:3523:33
7:35
-
10K
6.21 mi11:12:5046:427:3123:09
7:27
-0:08
15K
9.32 mi11:36:351:10:277:3423:45
7:39
+0:12
20K
12.43 mi12:01:291:35:217:4024:54
8:01
+0:22
Half
13.11 mi12:06:561:40:487:415:27
7:59
-0:02
25K
15.53 mi12:27:162:01:087:4820:20
8:23
+0:24
30K
18.64 mi12:55:482:29:408:0228:32
9:11
+0:48
20M
20.00 mi13:08:322:42:248:0712:44
9:22
+0:11
21M
21.00 mi13:18:592:52:518:1410:27
10:27
+1:05
35K
21.75 mi13:25:432:59:358:156:44
9:00
-1:27
23M
23.00 mi13:37:463:11:388:2012:03
9:37
+0:37
24M
24.00 mi13:46:593:20:518:229:13
9:13
-0:24
40K
24.85 mi13:55:113:29:038:258:12
9:35
+0:22
25.2M
25.20 mi13:58:473:32:398:263:36
10:26
+0:51
Finish
26.22 mi14:08:123:42:048:299:25
9:14
-1:12

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

7:27 /mi

Average Pace

8:29 /mi

Slowest Pace

10:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:08

55% of race

Time at Steady Pace

1:26:53

39% of race

Time at Slower Pace

14:03

6% of race

Average Pace: 8:28 /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 mi10:49:4123:337:3523:33
7:35
#10352
10K
6.21 mi11:12:5046:427:3123:09
7:27
#10184
15K
9.32 mi11:36:351:10:277:3423:45
7:39
#10572
20K
12.43 mi12:01:291:35:217:4024:54
8:01
#11283
Half
13.11 mi12:06:561:40:487:415:27
7:59
#11446
25K
15.53 mi12:27:162:01:087:4820:20
8:23
#12162
30K
18.64 mi12:55:482:29:408:0228:32
9:11
#13499
20M
20.00 mi13:08:322:42:248:0712:44
9:22
#14002
21M
21.00 mi13:18:592:52:518:1410:27
10:27
#14416
35K
21.75 mi13:25:432:59:358:156:44
9:00
#14562
23M
23.00 mi13:37:463:11:388:2012:03
9:37
#14877
24M
24.00 mi13:46:593:20:518:229:13
9:13
#15026
40K
24.85 mi13:55:113:29:038:258:12
9:35
#15187
25.2M
25.20 mi13:58:473:32:398:263:36
10:26
#15276
Finish
26.22 mi14:08:123:42:048:299:25
9:14
#15461
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi103528329832911373(Top 43%)8808(Top 58%)8808(Top 619%)
10K6.21 mi3.10 mi10184+1688252+778252+7710082(Top 38%)8213(Top 54%)8213(Top 578%)
15K9.32 mi3.11 mi10572-3888453-2018453-20111373(Top 43%)8808(Top 58%)8808(Top 619%)
20K12.43 mi3.11 mi11283-7118777-3248777-32413550(Top 51%)9695(Top 64%)9695(Top 682%)
Half13.11 mi0.68 mi11446-1638840-638840-6314241(Top 53%)10013(Top 66%)10013(Top 704%)
25K15.53 mi2.42 mi12162-7169117-2779117-27715484(Top 58%)10332(Top 68%)10332(Top 727%)
30K18.64 mi3.11 mi13499-13379644-5279644-52718081(Top 68%)11361(Top 75%)11361(Top 799%)
20M20.00 mi1.36 mi14002-5039819-1759819-17518301(Top 69%)11368(Top 75%)11368(Top 799%)
21M21.00 mi1.00 mi14416-4149952-1339952-13319416(Top 73%)11798(Top 78%)11798(Top 830%)
35K21.75 mi0.75 mi14562-14610002-5010002-5017883(Top 67%)11084(Top 73%)11084(Top 779%)
23M23.00 mi1.25 mi14877-31510102-10010102-10018801(Top 71%)11480(Top 76%)11480(Top 807%)
24M24.00 mi1.00 mi15026-14910135-3310135-3318098(Top 68%)11121(Top 73%)11121(Top 782%)
40K24.85 mi0.85 mi15187-16110182-4710182-4718619(Top 70%)11309(Top 75%)11309(Top 795%)
25.2M25.20 mi0.35 mi15276-8910201-1910201-1918858(Top 71%)11393(Top 75%)11393(Top 801%)
Finish26.22 mi1.02 mi15461-18510257-5610257-5619085(Top 72%)11573(Top 76%)11573(Top 814%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

11373

Males

8808

M55-59

8808

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10082

Males

8213

M55-59

8213

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

11373

Males

8808

M55-59

8808

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

13550

Males

9695

M55-59

9695

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14241

Males

10013

M55-59

10013

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

15484

Males

10332

M55-59

10332

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

18081

Males

11361

M55-59

11361

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

18301

Males

11368

M55-59

11368

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

19416

Males

11798

M55-59

11798

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17883

Males

11084

M55-59

11084

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

18801

Males

11480

M55-59

11480

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

18098

Males

11121

M55-59

11121

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18619

Males

11309

M55-59

11309

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18858

Males

11393

M55-59

11393

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19085

Males

11573

M55-59

11573

Passing Analysis

Category:
Athletes Passed
710*
Passed By
5819
Net Change
-5109
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10352
5K → 10K400*232+168#10352#10184
10K → 15K68456-388#10184#10572
15K → 20K28739-711#10572#11283
20K → Half5168-163#11283#11446
Half → 25K16732-716#11446#12162
25K → 30K211358-1337#12162#13499
30K → 20M20523-503#13499#14002
20M → 21M14428-414#14002#14416
21M → 35K13159-146#14416#14562
35K → 23M22337-315#14562#14877
23M → 24M30179-149#14877#15026
24M → 40K27188-161#15026#15187
40K → 25.2M19108-89#15187#15276
25.2M → Finish27212-185#15276#15461
TOTALS710*5819-5109

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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