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BOSTON MARATHON 2023

Clyde Rossouw

Bib: 22728•M

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
26:16
Rank: #17248
Start → 5K
26:16 | 8:27/mi
10K· 6.21 mi
54:00
Rank: #19055 (-1807)
5K → 10K
27:44 | 8:56/mi
15K· 9.32 mi
1:21:12
Rank: #19109 (-54)
10K → 15K
27:12 | 8:45/mi
20K· 12.43 mi
1:49:26
Rank: #19348 (-239)
15K → 20K
28:14 | 9:05/mi
Half· 13.11 mi
1:55:35
Rank: #19412 (-64)
20K → Half
6:09 | 9:01/mi
25K· 15.53 mi
2:20:50
Rank: #20416 (-1004)
Half → 25K
25:15 | 10:25/mi
30K· 18.64 mi
2:53:14
Rank: #20799 (-383)
25K → 30K
32:24 | 10:26/mi
20M
3:08:57
Rank: #21112 (-313)
30K → 20M
15:43 | 11:34/mi
21M
3:21:07
Rank: #21274 (-162)
20M → 21M
12:10 | 12:10/mi
35K· 21.75 mi
3:29:09
Rank: #21340 (-66)
21M → 35K
8:02 | 10:44/mi
23M
3:46:24
Rank: #21864 (-524)
35K → 23M
17:15 | 13:47/mi
24M
3:55:39
Rank: #21739 (+125)
23M → 24M
9:15 | 9:15/mi
40K· 24.85 mi
4:06:18
Rank: #21890 (-151)
24M → 40K
10:39 | 12:27/mi
25.2M
4:09:51
Rank: #21842 (+48)
40K → 25.2M
3:33 | 10:18/mi
Finish· 26.22 mi
4:20:19
Rank: #21868 (-26)
25.2M → Finish
10:28 | 10:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:35
Pace8:49 /mi
2nd Half
Distance13.11 mi
Time2:24:44
Pace11:02 /mi
📊Positive Split: 25.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3026:168:2726:16
8:27
-
10K
6.21 mi11:51:1454:008:4127:44
8:56
+0:29
15K
9.32 mi12:18:261:21:128:4327:12
8:45
-0:11
20K
12.43 mi12:46:401:49:268:4828:14
9:05
+0:20
Half
13.11 mi12:52:491:55:358:496:09
9:01
-0:04
25K
15.53 mi13:18:042:20:509:0425:15
10:25
+1:24
30K
18.64 mi13:50:282:53:149:1832:24
10:26
+0:01
20M
20.00 mi14:06:113:08:579:2715:43
11:34
+1:08
21M
21.00 mi14:18:213:21:079:3512:10
12:10
+0:36
35K
21.75 mi14:26:233:29:099:378:02
10:44
-1:26
23M
23.00 mi14:43:383:46:249:5117:15
13:47
+3:03
24M
24.00 mi14:52:533:55:399:499:15
9:15
-4:32
40K
24.85 mi15:03:324:06:189:5510:39
12:27
+3:12
25.2M
25.20 mi15:07:054:09:519:553:33
10:18
-2:09
Finish
26.22 mi15:17:334:20:199:5610:28
10:16
-0:02

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

8:27 /mi

Average Pace

9:56 /mi

Slowest Pace

13:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:50

48% of race

Time at Steady Pace

1:19:42

31% of race

Time at Slower Pace

55:47

21% of race

Average Pace: 9:56 /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 mi11:23:3026:168:2726:16
8:27
#17248
10K
6.21 mi11:51:1454:008:4127:44
8:56
#19055
15K
9.32 mi12:18:261:21:128:4327:12
8:45
#19109
20K
12.43 mi12:46:401:49:268:4828:14
9:05
#19348
Half
13.11 mi12:52:491:55:358:496:09
9:01
#19412
25K
15.53 mi13:18:042:20:509:0425:15
10:25
#20416
30K
18.64 mi13:50:282:53:149:1832:24
10:26
#20799
20M
20.00 mi14:06:113:08:579:2715:43
11:34
#21112
21M
21.00 mi14:18:213:21:079:3512:10
12:10
#21274
35K
21.75 mi14:26:233:29:099:378:02
10:44
#21340
23M
23.00 mi14:43:383:46:249:5117:15
13:47
#21864
24M
24.00 mi14:52:533:55:399:499:15
9:15
#21739
40K
24.85 mi15:03:324:06:189:5510:39
12:27
#21890
25.2M
25.20 mi15:07:054:09:519:553:33
10:18
#21842
Finish
26.22 mi15:17:334:20:199:5610:28
10:16
#21868
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17248111381113819262(Top 72%)11996(Top 79%)11996(Top 1081%)
10K6.21 mi3.10 mi19055-180711849-71111849-71120551(Top 77%)12524(Top 83%)12524(Top 1128%)
15K9.32 mi3.11 mi19109-5411892-4311892-4319262(Top 72%)11996(Top 79%)11996(Top 1081%)
20K12.43 mi3.11 mi19348-23911991-9911991-9920080(Top 75%)12348(Top 81%)12348(Top 1112%)
Half13.11 mi0.68 mi19412-6412017-2612017-2620493(Top 77%)12518(Top 82%)12518(Top 1128%)
25K15.53 mi2.42 mi20416-100412451-43412451-43423023(Top 86%)13598(Top 90%)13598(Top 1225%)
30K18.64 mi3.11 mi20799-38312620-16912620-16922065(Top 83%)13098(Top 86%)13098(Top 1180%)
20M20.00 mi1.36 mi21112-31312727-10712727-10723612(Top 89%)13744(Top 91%)13744(Top 1238%)
21M21.00 mi1.00 mi21274-16212786-5912786-5922986(Top 86%)13421(Top 88%)13421(Top 1209%)
35K21.75 mi0.75 mi21340-6612818-3212818-3222800(Top 86%)13293(Top 88%)13293(Top 1198%)
23M23.00 mi1.25 mi21864-52413043-22513043-22525676(Top 96%)14661(Top 97%)14661(Top 1321%)
24M24.00 mi1.00 mi21739+12512975+6812975+6818260(Top 69%)11211(Top 74%)11211(Top 1010%)
40K24.85 mi0.85 mi21890-15113035-6013035-6024390(Top 92%)13982(Top 92%)13982(Top 1260%)
25.2M25.20 mi0.35 mi21842+4813006+2913006+2918447(Top 69%)11239(Top 74%)11239(Top 1013%)
Finish26.22 mi1.02 mi21868-2613008-213008-222454(Top 84%)13073(Top 86%)13073(Top 1178%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19262

Males

11996

M60-64

11996

5K→10K

3.1 - 6.2 mi

Top 77%
×5stories
+79ft-138ft

Overall

20551

Males

12524

M60-64

12524

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19262

Males

11996

M60-64

11996

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

20080

Males

12348

M60-64

12348

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

20493

Males

12518

M60-64

12518

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

23023

Males

13598

M60-64

13598

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

22065

Males

13098

M60-64

13098

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

23612

Males

13744

M60-64

13744

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

22986

Males

13421

M60-64

13421

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

22800

Males

13293

M60-64

13293

35K→23M

21.8 - 23.0 mi

Top 96%
×5stories
+23ft-63ft

Overall

25676

Males

14661

M60-64

14661

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18260

Males

11211

M60-64

11211

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

24390

Males

13982

M60-64

13982

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18447

Males

11239

M60-64

11239

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

22454

Males

13073

M60-64

13073

Passing Analysis

Category:
Athletes Passed
625
Passed By
5245
Net Change
-4620
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17248
5K → 10K221829-1807#17248#19055
10K → 15K157211-54#19055#19109
15K → 20K90329-239#19109#19348
20K → Half1074-64#19348#19412
Half → 25K101014-1004#19412#20416
25K → 30K55438-383#20416#20799
30K → 20M19332-313#20799#21112
20M → 21M23185-162#21112#21274
21M → 35K1177-66#21274#21340
35K → 23M11535-524#21340#21864
23M → 24M1294+125#21864#21739
24M → 40K10161-151#21739#21890
40K → 25.2M491+48#21890#21842
25.2M → Finish2955-26#21842#21868
TOTALS6255245-4620
📊

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