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BOSTON MARATHON 2023

Rod Rollack

Bib: 20420•M

SK

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M65-69)
#0 / 549
Top 33%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:35/mi
26:41
↑ 97↓ 3451.5%
10K· 6.21 mi
8:31/mi
53:08
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:19:50
↑ 67↓ 78
20K· 12.43 mi
8:43/mi
1:46:55
↑ 106↓ 860.1%
Half· 13.11 mi
8:40/mi
1:52:50
↑ 19↓ 370.5%
25K· 15.53 mi
8:47/mi
2:14:07
↑ 66↓ 880.2%
30K· 18.64 mi
9:10/mi
2:42:35
↑ 181↓ 1480.2%
20M
9:17/mi
2:55:12
↑ 64↓ 500.2%
21M
10:03/mi
3:05:15
↑ 106↓ 241.6%
35K· 21.75 mi
9:23/mi
3:12:16
↑ 17↓ 861.7%
23M
9:27/mi
3:24:06
↑ 23↓ 630.6%
24M
9:01/mi
3:33:07
↓ 821.3%
40K· 24.85 mi
9:19/mi
3:41:05
↓ 200.3%
25.2M
10:21/mi
3:44:39
↑ 13↓ 160.2%
Finish· 26.22 mi
9:15/mi
3:54:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:50
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time2:01:15
Pace9:15 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2626:418:3526:41
8:35
-
10K
6.21 mi11:45:5353:088:3326:27
8:31
-0:04
15K
9.32 mi12:12:351:19:508:3426:42
8:36
+0:05
20K
12.43 mi12:39:401:46:558:3627:05
8:43
+0:07
Half
13.11 mi12:45:351:52:508:365:55
8:40
-0:03
25K
15.53 mi13:06:522:14:078:3821:17
8:47
+0:07
30K
18.64 mi13:35:202:42:358:4328:28
9:10
+0:23
20M
20.00 mi13:47:572:55:128:4612:37
9:17
+0:07
21M
21.00 mi13:58:003:05:158:4910:03
10:03
+0:46
35K
21.75 mi14:05:013:12:168:507:01
9:23
-0:40
23M
23.00 mi14:16:513:24:068:5211:50
9:27
+0:04
24M
24.00 mi14:25:523:33:078:539:01
9:01
-0:26
40K
24.85 mi14:33:503:41:058:547:58
9:19
+0:18
25.2M
25.20 mi14:37:243:44:398:553:34
10:21
+1:02
Finish
26.22 mi14:46:503:54:058:569:26
9:15
-1:06

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

8:31 /mi

Average Pace

8:56 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:07

57% of race

Time at Steady Pace

1:14:31

32% of race

Time at Slower Pace

25:27

11% of race

Average Pace: 8:56 /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 mi11:19:2626:418:3526:41
8:35
#18152
10K
6.21 mi11:45:5353:088:3326:27
8:31
#18202
15K
9.32 mi12:12:351:19:508:3426:42
8:36
#18260
20K
12.43 mi12:39:401:46:558:3627:05
8:43
#18223
Half
13.11 mi12:45:351:52:508:365:55
8:40
#18250
25K
15.53 mi13:06:522:14:078:3821:17
8:47
#18168
30K
18.64 mi13:35:202:42:358:4328:28
9:10
#18116
20M
20.00 mi13:47:572:55:128:4612:37
9:17
#18096
21M
21.00 mi13:58:003:05:158:4910:03
10:03
#18087
35K
21.75 mi14:05:013:12:168:507:01
9:23
#18173
23M
23.00 mi14:16:513:24:068:5211:50
9:27
#18171
24M
24.00 mi14:25:523:33:078:539:01
9:01
#18146
40K
24.85 mi14:33:503:41:058:547:58
9:19
#18122
25.2M
25.20 mi14:37:243:44:398:553:34
10:21
#18147
Finish
26.22 mi14:46:503:54:058:569:26
9:15
#18187
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi18152114801148018391(Top 69%)11641(Top 77%)11641(Top 2120%)
10K6.21 mi3.10 mi18202-5011537-5711537-5718332(Top 69%)11635(Top 77%)11635(Top 2119%)
15K9.32 mi3.11 mi18260-5811570-3311570-3318391(Top 69%)11641(Top 77%)11641(Top 2120%)
20K12.43 mi3.11 mi18223+3711559+1111559+1118216(Top 68%)11570(Top 76%)11570(Top 2107%)
Half13.11 mi0.68 mi18250-2711568-911568-918737(Top 70%)11792(Top 78%)11792(Top 2148%)
25K15.53 mi2.42 mi18168+8211515+5311515+5317817(Top 67%)11330(Top 75%)11330(Top 2064%)
30K18.64 mi3.11 mi18116+5211456+5911456+5917984(Top 68%)11323(Top 75%)11323(Top 2062%)
20M20.00 mi1.36 mi18096+2011433+2311433+2317933(Top 67%)11204(Top 74%)11204(Top 2041%)
21M21.00 mi1.00 mi18087+911419+1411419+1418195(Top 68%)11305(Top 74%)11305(Top 2059%)
35K21.75 mi0.75 mi18173-8611446-2711446-2719417(Top 73%)11776(Top 78%)11776(Top 2145%)
23M23.00 mi1.25 mi18171+211440+611440+618123(Top 68%)11167(Top 74%)11167(Top 2034%)
24M24.00 mi1.00 mi18146+2511414+2611414+2617300(Top 65%)10765(Top 71%)10765(Top 1961%)
40K24.85 mi0.85 mi18122+2411391+2311391+2317577(Top 66%)10832(Top 71%)10832(Top 1973%)
25.2M25.20 mi0.35 mi18147-2511398-711398-718576(Top 70%)11285(Top 74%)11285(Top 2056%)
Finish26.22 mi1.02 mi18187-4011407-911407-919167(Top 72%)11613(Top 77%)11613(Top 2115%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18391

Males

11641

M65-69

11641

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18332

Males

11635

M65-69

11635

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18391

Males

11641

M65-69

11641

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18216

Males

11570

M65-69

11570

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18737

Males

11792

M65-69

11792

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17817

Males

11330

M65-69

11330

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

17984

Males

11323

M65-69

11323

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

17933

Males

11204

M65-69

11204

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

18195

Males

11305

M65-69

11305

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19417

Males

11776

M65-69

11776

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

18123

Males

11167

M65-69

11167

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

17300

Males

10765

M65-69

10765

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17577

Males

10832

M65-69

10832

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18576

Males

11285

M65-69

11285

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19167

Males

11613

M65-69

11613

Passing Analysis

Category:
Athletes Passed
1501
Passed By
1536
Net Change
-35
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18152
5K → 10K279329-50#18152#18202
10K → 15K165223-58#18202#18260
15K → 20K184147+37#18260#18223
20K → Half1845-27#18223#18250
Half → 25K16684+82#18250#18168
25K → 30K217165+52#18168#18116
30K → 20M9171+20#18116#18096
20M → 21M10697+9#18096#18087
21M → 35K25111-86#18087#18173
35K → 23M7674+2#18173#18171
23M → 24M6641+25#18171#18146
24M → 40K5632+24#18146#18122
40K → 25.2M1540-25#18122#18147
25.2M → Finish3777-40#18147#18187
TOTALS15011536-35
📊

Passing Visuals

Category:
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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