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BOSTON MARATHON 2023

Rob Fraser

Bib: 19309•M

ON

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

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
8:22/mi
25:59
↑ 97↓ 3451.5%
10K· 6.21 mi
8:19/mi
51:50
↑ 79↓ 1380.4%
15K· 9.32 mi
8:02/mi
1:16:49
↑ 67↓ 78
20K· 12.43 mi
8:21/mi
1:42:47
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:48:21
↑ 19↓ 370.5%
25K· 15.53 mi
8:23/mi
2:08:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:50/mi
2:36:08
↑ 181↓ 1480.2%
20M
8:52/mi
2:48:11
↑ 64↓ 500.2%
21M
9:17/mi
2:57:28
↑ 106↓ 241.6%
35K· 21.75 mi
8:59/mi
3:04:11
↑ 17↓ 861.7%
23M
8:44/mi
3:15:07
↑ 23↓ 630.6%
24M
8:53/mi
3:24:00
↓ 821.3%
40K· 24.85 mi
8:35/mi
3:31:20
↓ 200.3%
25.2M
9:40/mi
3:34:40
↑ 13↓ 160.2%
Finish· 26.22 mi
8:06/mi
3:42:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:21
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time1:54:34
Pace8:44 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:4525:598:2225:59
8:22
-
10K
6.21 mi11:43:3651:508:2125:51
8:19
-0:03
15K
9.32 mi12:08:351:16:498:1424:59
8:02
-0:17
20K
12.43 mi12:34:331:42:478:1625:58
8:21
+0:19
Half
13.11 mi12:40:071:48:218:165:34
8:10
-0:11
25K
15.53 mi13:00:272:08:418:1720:20
8:23
+0:13
30K
18.64 mi13:27:542:36:088:2327:27
8:50
+0:27
20M
20.00 mi13:39:572:48:118:2512:03
8:52
+0:02
21M
21.00 mi13:49:142:57:288:279:17
9:17
+0:25
35K
21.75 mi13:55:573:04:118:286:43
8:59
-0:18
23M
23.00 mi14:06:533:15:078:2910:56
8:44
-0:15
24M
24.00 mi14:15:463:24:008:308:53
8:53
+0:09
40K
24.85 mi14:23:063:31:208:307:20
8:35
-0:18
25.2M
25.20 mi14:26:263:34:408:313:20
9:40
+1:05
Finish
26.22 mi14:34:413:42:558:308:15
8:06
-1:34

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

8:02 /mi

Average Pace

8:30 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:37

41% of race

Time at Steady Pace

1:04:35

29% of race

Time at Slower Pace

1:07:43

30% of race

Average Pace: 8:30 /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 mi11:17:4525:598:2225:59
8:22
#16591
10K
6.21 mi11:43:3651:508:2125:51
8:19
#16786
15K
9.32 mi12:08:351:16:498:1424:59
8:02
#16121
20K
12.43 mi12:34:331:42:478:1625:58
8:21
#16055
Half
13.11 mi12:40:071:48:218:165:34
8:10
#16026
25K
15.53 mi13:00:272:08:418:1720:20
8:23
#15927
30K
18.64 mi13:27:542:36:088:2327:27
8:50
#15979
20M
20.00 mi13:39:572:48:118:2512:03
8:52
#15957
21M
21.00 mi13:49:142:57:288:279:17
9:17
#15869
35K
21.75 mi13:55:573:04:118:286:43
8:59
#15930
23M
23.00 mi14:06:533:15:078:2910:56
8:44
#15831
24M
24.00 mi14:15:463:24:008:308:53
8:53
#15882
40K
24.85 mi14:23:063:31:208:307:20
8:35
#15791
25.2M
25.20 mi14:26:263:34:408:313:20
9:40
#15789
Finish
26.22 mi14:34:413:42:558:308:15
8:06
#15666
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16591109091090914723(Top 55%)10187(Top 67%)10187(Top 716%)
10K6.21 mi3.10 mi16786-19510998-8910998-8917056(Top 64%)11130(Top 73%)11130(Top 783%)
15K9.32 mi3.11 mi16121+66510739+25910739+25914723(Top 55%)10187(Top 67%)10187(Top 716%)
20K12.43 mi3.11 mi16055+6610695+4410695+4415978(Top 60%)10626(Top 70%)10626(Top 747%)
Half13.11 mi0.68 mi16026+2910677+1810677+1815465(Top 58%)10482(Top 69%)10482(Top 737%)
25K15.53 mi2.42 mi15927+9910616+6110616+6115486(Top 58%)10334(Top 68%)10334(Top 727%)
30K18.64 mi3.11 mi15979-5210598+1810598+1816270(Top 61%)10593(Top 70%)10593(Top 745%)
20M20.00 mi1.36 mi15957+2210563+3510563+3515802(Top 59%)10330(Top 68%)10330(Top 726%)
21M21.00 mi1.00 mi15869+8810513+5010513+5014881(Top 56%)9885(Top 65%)9885(Top 695%)
35K21.75 mi0.75 mi15930-6110521-810521-817787(Top 67%)11043(Top 73%)11043(Top 777%)
23M23.00 mi1.25 mi15831+9910454+6710454+6714579(Top 55%)9620(Top 63%)9620(Top 677%)
24M24.00 mi1.00 mi15882-5110453+110453+116666(Top 63%)10471(Top 69%)10471(Top 736%)
40K24.85 mi0.85 mi15791+9110412+4110412+4113807(Top 52%)9160(Top 60%)9160(Top 644%)
25.2M25.20 mi0.35 mi15789+210407+510407+515909(Top 60%)10073(Top 66%)10073(Top 708%)
Finish26.22 mi1.02 mi15666+12310356+5110356+5112739(Top 48%)8654(Top 57%)8654(Top 609%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14723

Males

10187

M55-59

10187

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

17056

Males

11130

M55-59

11130

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14723

Males

10187

M55-59

10187

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15978

Males

10626

M55-59

10626

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

15465

Males

10482

M55-59

10482

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15486

Males

10334

M55-59

10334

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

16270

Males

10593

M55-59

10593

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

15802

Males

10330

M55-59

10330

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14881

Males

9885

M55-59

9885

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17787

Males

11043

M55-59

11043

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

14579

Males

9620

M55-59

9620

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16666

Males

10471

M55-59

10471

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13807

Males

9160

M55-59

9160

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15909

Males

10073

M55-59

10073

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12739

Males

8654

M55-59

8654

Passing Analysis

Category:
Athletes Passed
2247
Passed By
1322
Net Change
+925
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16591
5K → 10K221416-195#16591#16786
10K → 15K70237+665#16786#16121
15K → 20K202136+66#16121#16055
20K → Half4617+29#16055#16026
Half → 25K17879+99#16026#15927
25K → 30K164216-52#15927#15979
30K → 20M9977+22#15979#15957
20M → 21M13042+88#15957#15869
21M → 35K40101-61#15869#15930
35K → 23M14344+99#15930#15831
23M → 24M55106-51#15831#15882
24M → 40K11019+91#15882#15791
40K → 25.2M2624+2#15791#15789
25.2M → Finish1318+123#15789#15666
TOTALS22471322+925
📊

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