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BOSTON MARATHON 2023

Susan Berlam

Bib: 23618•F

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:33
Rank: #19837
Start → 5K
27:33 | 8:52/mi
10K· 6.21 mi
54:54
Rank: #19856 (-19)
5K → 10K
27:21 | 8:48/mi
15K· 9.32 mi
1:22:01
Rank: #19606 (+250)
10K → 15K
27:07 | 8:44/mi
20K· 12.43 mi
1:50:47
Rank: #19929 (-323)
15K → 20K
28:46 | 9:16/mi
Half· 13.11 mi
1:56:40
Rank: #19848 (+81)
20K → Half
5:53 | 8:37/mi
25K· 15.53 mi
2:17:54
Rank: #19507 (+341)
Half → 25K
21:14 | 8:45/mi
30K· 18.64 mi
2:45:43
Rank: #19051 (+456)
25K → 30K
27:49 | 8:57/mi
20M
2:58:01
Rank: #18873 (+178)
30K → 20M
12:18 | 9:03/mi
21M
3:07:26
Rank: #18671 (+202)
20M → 21M
9:25 | 9:25/mi
35K· 21.75 mi
3:14:02
Rank: #18606 (+65)
21M → 35K
6:36 | 8:49/mi
23M
3:25:14
Rank: #18431 (+175)
35K → 23M
11:12 | 8:57/mi
24M
3:33:59
Rank: #18318 (+113)
23M → 24M
8:45 | 8:45/mi
40K· 24.85 mi
3:41:33
Rank: #18220 (+98)
24M → 40K
7:34 | 8:51/mi
25.2M
3:44:44
Rank: #18163 (+57)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:53:22
Rank: #18058 (+105)
25.2M → Finish
8:38 | 8:28/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:56:40
Pace8:54 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:56:42
Pace8:54 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2827:338:5227:33
8:52
-
10K
6.21 mi11:50:4954:548:5027:21
8:48
-0:04
15K
9.32 mi12:17:561:22:018:4827:07
8:44
-0:04
20K
12.43 mi12:46:421:50:478:5528:46
9:16
+0:32
Half
13.11 mi12:52:351:56:408:545:53
8:37
-0:39
25K
15.53 mi13:13:492:17:548:5321:14
8:45
+0:08
30K
18.64 mi13:41:382:45:438:5327:49
8:57
+0:12
20M
20.00 mi13:53:562:58:018:5412:18
9:03
+0:06
21M
21.00 mi14:03:213:07:268:569:25
9:25
+0:22
35K
21.75 mi14:09:573:14:028:556:36
8:49
-0:36
23M
23.00 mi14:21:093:25:148:5511:12
8:57
+0:08
24M
24.00 mi14:29:543:33:598:558:45
8:45
-0:12
40K
24.85 mi14:37:283:41:338:557:34
8:51
+0:06
25.2M
25.20 mi14:40:393:44:448:553:11
9:14
+0:23
Finish
26.22 mi14:49:173:53:228:548:38
8:28
-0:46

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

8:28 /mi

Average Pace

8:54 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:43:57

96% of race

Time at Steady Pace

9:25

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:54 /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 mi11:23:2827:338:5227:33
8:52
#19837
10K
6.21 mi11:50:4954:548:5027:21
8:48
#19856
15K
9.32 mi12:17:561:22:018:4827:07
8:44
#19606
20K
12.43 mi12:46:421:50:478:5528:46
9:16
#19929
Half
13.11 mi12:52:351:56:408:545:53
8:37
#19848
25K
15.53 mi13:13:492:17:548:5321:14
8:45
#19507
30K
18.64 mi13:41:382:45:438:5327:49
8:57
#19051
20M
20.00 mi13:53:562:58:018:5412:18
9:03
#18873
21M
21.00 mi14:03:213:07:268:569:25
9:25
#18671
35K
21.75 mi14:09:573:14:028:556:36
8:49
#18606
23M
23.00 mi14:21:093:25:148:5511:12
8:57
#18431
24M
24.00 mi14:29:543:33:598:558:45
8:45
#18318
40K
24.85 mi14:37:283:41:338:557:34
8:51
#18220
25.2M
25.20 mi14:40:393:44:448:553:11
9:14
#18163
Finish
26.22 mi14:49:173:53:228:548:38
8:28
#18058
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi198377710771019131(Top 72%)7179(Top 63%)7179(Top 1362%)
10K6.21 mi3.10 mi19856-197682+287682+2819941(Top 75%)7659(Top 67%)7659(Top 1453%)
15K9.32 mi3.11 mi19606+2507516+1667516+16619131(Top 72%)7179(Top 63%)7179(Top 1362%)
20K12.43 mi3.11 mi19929-3237684-1687684-16820818(Top 78%)8119(Top 71%)8119(Top 1541%)
Half13.11 mi0.68 mi19848+817632+527632+5218506(Top 70%)6783(Top 59%)6783(Top 1287%)
25K15.53 mi2.42 mi19507+3417423+2097423+20917719(Top 67%)6416(Top 56%)6416(Top 1217%)
30K18.64 mi3.11 mi19051+4567166+2577166+25716942(Top 64%)6033(Top 53%)6033(Top 1145%)
20M20.00 mi1.36 mi18873+1787085+817085+8116829(Top 63%)6054(Top 53%)6054(Top 1149%)
21M21.00 mi1.00 mi18671+2026967+1186967+11815597(Top 59%)5411(Top 47%)5411(Top 1027%)
35K21.75 mi0.75 mi18606+656936+316936+3117101(Top 64%)6339(Top 55%)6339(Top 1203%)
23M23.00 mi1.25 mi18431+1756870+666870+6615807(Top 59%)5645(Top 49%)5645(Top 1071%)
24M24.00 mi1.00 mi18318+1136812+586812+5815971(Top 60%)5799(Top 51%)5799(Top 1100%)
40K24.85 mi0.85 mi18220+986765+476765+4715403(Top 58%)5535(Top 48%)5535(Top 1050%)
25.2M25.20 mi0.35 mi18163+576738+276738+2713942(Top 52%)4753(Top 42%)4753(Top 902%)
Finish26.22 mi1.02 mi18058+1056687+516687+5115290(Top 57%)5433(Top 48%)5433(Top 1031%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19131

Females

7179

F60-64

7179

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

19941

Females

7659

F60-64

7659

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19131

Females

7179

F60-64

7179

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

20818

Females

8119

F60-64

8119

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

18506

Females

6783

F60-64

6783

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

17719

Females

6416

F60-64

6416

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

16942

Females

6033

F60-64

6033

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16829

Females

6054

F60-64

6054

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

15597

Females

5411

F60-64

5411

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

17101

Females

6339

F60-64

6339

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

15807

Females

5645

F60-64

5645

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

15971

Females

5799

F60-64

5799

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15403

Females

5535

F60-64

5535

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13942

Females

4753

F60-64

4753

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

15290

Females

5433

F60-64

5433

Passing Analysis

Category:
Athletes Passed
2695
Passed By
916
Net Change
+1779
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19837
5K → 10K290309-19#19837#19856
10K → 15K33484+250#19856#19606
15K → 20K84407-323#19606#19929
20K → Half843+81#19929#19848
Half → 25K3509+341#19848#19507
25K → 30K47822+456#19507#19051
30K → 20M18911+178#19051#18873
20M → 21M2097+202#18873#18671
21M → 35K8116+65#18671#18606
35K → 23M18813+175#18606#18431
23M → 24M1196+113#18431#18318
24M → 40K11012+98#18318#18220
40K → 25.2M592+57#18220#18163
25.2M → Finish12015+105#18163#18058
TOTALS2695916+1779
📊

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