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BOSTON MARATHON 2023

Susan Spencer

Bib: 23334•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 49%
Division (F60-64)
#0 / 527
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:56
Rank: #18690
Start → 5K
26:56 | 8:40/mi
10K· 6.21 mi
53:47
Rank: #18836 (-146)
5K → 10K
26:51 | 8:39/mi
15K· 9.32 mi
1:20:35
Rank: #18730 (+106)
10K → 15K
26:48 | 8:38/mi
20K· 12.43 mi
1:47:32
Rank: #18525 (+205)
15K → 20K
26:57 | 8:40/mi
Half· 13.11 mi
1:53:22
Rank: #18498 (+27)
20K → Half
5:50 | 8:33/mi
25K· 15.53 mi
2:14:28
Rank: #18311 (+187)
Half → 25K
21:06 | 8:42/mi
30K· 18.64 mi
2:42:31
Rank: #18099 (+212)
25K → 30K
28:03 | 9:02/mi
20M
2:54:57
Rank: #18017 (+82)
30K → 20M
12:26 | 9:09/mi
21M
3:04:43
Rank: #17950 (+67)
20M → 21M
9:46 | 9:46/mi
35K· 21.75 mi
3:11:06
Rank: #17871 (+79)
21M → 35K
6:23 | 8:32/mi
23M
3:22:29
Rank: #17795 (+76)
35K → 23M
11:23 | 9:05/mi
24M
3:31:18
Rank: #17735 (+60)
23M → 24M
8:49 | 8:49/mi
40K· 24.85 mi
3:39:13
Rank: #17735
24M → 40K
7:55 | 9:16/mi
25.2M
3:42:35
Rank: #17717 (+18)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:51:19
Rank: #17635 (+82)
25.2M → Finish
8:44 | 8:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:22
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time1:57:57
Pace9:00 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5526:568:4026:56
8:40
-
10K
6.21 mi11:49:4653:478:3926:51
8:39
-0:01
15K
9.32 mi12:16:341:20:358:3926:48
8:38
-0:01
20K
12.43 mi12:43:311:47:328:3926:57
8:40
+0:02
Half
13.11 mi12:49:211:53:228:395:50
8:33
-0:07
25K
15.53 mi13:10:272:14:288:3921:06
8:42
+0:09
30K
18.64 mi13:38:302:42:318:4328:03
9:02
+0:20
20M
20.00 mi13:50:562:54:578:4512:26
9:09
+0:07
21M
21.00 mi14:00:423:04:438:489:46
9:46
+0:37
35K
21.75 mi14:07:053:11:068:476:23
8:32
-1:14
23M
23.00 mi14:18:283:22:298:4811:23
9:05
+0:33
24M
24.00 mi14:27:173:31:188:488:49
8:49
-0:16
40K
24.85 mi14:35:123:39:138:497:55
9:16
+0:27
25.2M
25.20 mi14:38:343:42:358:503:22
9:46
+0:30
Finish
26.22 mi14:47:183:51:198:508:44
8:34
-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

8:32 /mi

Average Pace

8:50 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:38:11

94% of race

Time at Steady Pace

13:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:49 /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 mi11:22:5526:568:4026:56
8:40
#18690
10K
6.21 mi11:49:4653:478:3926:51
8:39
#18836
15K
9.32 mi12:16:341:20:358:3926:48
8:38
#18730
20K
12.43 mi12:43:311:47:328:3926:57
8:40
#18525
Half
13.11 mi12:49:211:53:228:395:50
8:33
#18498
25K
15.53 mi13:10:272:14:288:3921:06
8:42
#18311
30K
18.64 mi13:38:302:42:318:4328:03
9:02
#18099
20M
20.00 mi13:50:562:54:578:4512:26
9:09
#18017
21M
21.00 mi14:00:423:04:438:489:46
9:46
#17950
35K
21.75 mi14:07:053:11:068:476:23
8:32
#17871
23M
23.00 mi14:18:283:22:298:4811:23
9:05
#17795
24M
24.00 mi14:27:173:31:188:488:49
8:49
#17735
40K
24.85 mi14:35:123:39:138:497:55
9:16
#17735
25.2M
25.20 mi14:38:343:42:358:503:22
9:46
#17717
Finish
26.22 mi14:47:183:51:198:508:44
8:34
#17635
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi186906995699518608(Top 70%)6861(Top 60%)6861(Top 1302%)
10K6.21 mi3.10 mi18836-1467033-387033-3819102(Top 72%)7141(Top 63%)7141(Top 1355%)
15K9.32 mi3.11 mi18730+1066959+746959+7418608(Top 70%)6861(Top 60%)6861(Top 1302%)
20K12.43 mi3.11 mi18525+2056818+1416818+14117967(Top 67%)6493(Top 57%)6493(Top 1232%)
Half13.11 mi0.68 mi18498+276803+156803+1518039(Top 68%)6503(Top 57%)6503(Top 1234%)
25K15.53 mi2.42 mi18311+1876714+896714+8917399(Top 65%)6225(Top 54%)6225(Top 1181%)
30K18.64 mi3.11 mi18099+2126627+876627+8717336(Top 65%)6266(Top 55%)6266(Top 1189%)
20M20.00 mi1.36 mi18017+826596+316596+3117323(Top 65%)6350(Top 56%)6350(Top 1205%)
21M21.00 mi1.00 mi17950+676558+386558+3817135(Top 64%)6270(Top 55%)6270(Top 1190%)
35K21.75 mi0.75 mi17871+796523+356523+3515534(Top 58%)5440(Top 48%)5440(Top 1032%)
23M23.00 mi1.25 mi17795+766499+246499+2416517(Top 62%)6035(Top 53%)6035(Top 1145%)
24M24.00 mi1.00 mi17735+606472+276472+2716330(Top 61%)5993(Top 52%)5993(Top 1137%)
40K24.85 mi0.85 mi177356477-56477-517359(Top 65%)6602(Top 58%)6602(Top 1253%)
25.2M25.20 mi0.35 mi17717+186472+56472+516426(Top 62%)6120(Top 54%)6120(Top 1161%)
Finish26.22 mi1.02 mi17635+826438+346438+3415856(Top 60%)5735(Top 50%)5735(Top 1088%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

18608

Females

6861

F60-64

6861

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

19102

Females

7141

F60-64

7141

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

18608

Females

6861

F60-64

6861

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

17967

Females

6493

F60-64

6493

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

18039

Females

6503

F60-64

6503

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

17399

Females

6225

F60-64

6225

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

17336

Females

6266

F60-64

6266

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

17323

Females

6350

F60-64

6350

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

17135

Females

6270

F60-64

6270

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

15534

Females

5440

F60-64

5440

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

16517

Females

6035

F60-64

6035

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

16330

Females

5993

F60-64

5993

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17359

Females

6602

F60-64

6602

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16426

Females

6120

F60-64

6120

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

15856

Females

5735

F60-64

5735

Passing Analysis

Category:
Athletes Passed
2106
Passed By
1051
Net Change
+1055
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18690
5K → 10K273419-146#18690#18836
10K → 15K236130+106#18836#18730
15K → 20K26762+205#18730#18525
20K → Half4316+27#18525#18498
Half → 25K23447+187#18498#18311
25K → 30K30088+212#18311#18099
30K → 20M12543+82#18099#18017
20M → 21M12154+67#18017#17950
21M → 35K889+79#17950#17871
35K → 23M12347+76#17871#17795
23M → 24M9636+60#17795#17735
24M → 40K57570#17735#17735
40K → 25.2M3214+18#17735#17717
25.2M → Finish11129+82#17717#17635
TOTALS21061051+1055
📊

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