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BOSTON MARATHON 2023

Mary Beth Cashman

Bib: 14791•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 13%
Masters (Masters Women)
#0 / 6539
Top 5%
Division (F40-44)
#0 / 1878
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:48
Rank: #11114
Start → 5K
23:48 | 7:40/mi
10K· 6.21 mi
46:37
Rank: #10055 (+1059)
5K → 10K
22:49 | 7:21/mi
15K· 9.32 mi
1:09:19
Rank: #9504 (+551)
10K → 15K
22:42 | 7:18/mi
20K· 12.43 mi
1:32:11
Rank: #9130 (+374)
15K → 20K
22:52 | 7:22/mi
Half· 13.11 mi
1:37:03
Rank: #9043 (+87)
20K → Half
4:52 | 7:08/mi
25K· 15.53 mi
1:54:54
Rank: #8819 (+224)
Half → 25K
17:51 | 7:22/mi
30K· 18.64 mi
2:18:25
Rank: #8570 (+249)
25K → 30K
23:31 | 7:34/mi
20M
2:28:52
Rank: #8507 (+63)
30K → 20M
10:27 | 7:41/mi
21M
2:37:05
Rank: #8510 (-3)
20M → 21M
8:13 | 8:13/mi
35K· 21.75 mi
2:42:41
Rank: #8485 (+25)
21M → 35K
5:36 | 7:29/mi
23M
2:52:37
Rank: #8511 (-26)
35K → 23M
9:56 | 7:56/mi
24M
3:00:15
Rank: #8477 (+34)
23M → 24M
7:38 | 7:38/mi
40K· 24.85 mi
3:07:05
Rank: #8532 (-55)
24M → 40K
6:50 | 8:00/mi
25.2M
3:10:06
Rank: #8569 (-37)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:18:23
Rank: #8717 (-148)
25.2M → Finish
8:17 | 8:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:03
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:41:20
Pace7:44 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5123:487:4023:48
7:40
-
10K
6.21 mi11:15:4046:377:3022:49
7:21
-0:19
15K
9.32 mi11:38:221:09:197:2622:42
7:18
-0:03
20K
12.43 mi12:01:141:32:117:2522:52
7:22
+0:04
Half
13.11 mi12:06:061:37:037:244:52
7:08
-0:14
25K
15.53 mi12:23:571:54:547:2417:51
7:22
+0:14
30K
18.64 mi12:47:282:18:257:2623:31
7:34
+0:12
20M
20.00 mi12:57:552:28:527:2710:27
7:41
+0:07
21M
21.00 mi13:06:082:37:057:298:13
8:13
+0:32
35K
21.75 mi13:11:442:42:417:295:36
7:29
-0:44
23M
23.00 mi13:21:402:52:377:309:56
7:56
+0:27
24M
24.00 mi13:29:183:00:157:317:38
7:38
-0:18
40K
24.85 mi13:36:083:07:057:326:50
8:00
+0:22
25.2M
25.20 mi13:39:093:10:067:333:01
8:45
+0:45
Finish
26.22 mi13:47:263:18:237:348:17
8:08
-0:37

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

7:08 /mi

Average Pace

7:34 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:06

46% of race

Time at Steady Pace

1:11:00

36% of race

Time at Slower Pace

36:17

18% of race

Average Pace: 7:34 /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 mi10:52:5123:487:4023:48
7:40
#11114
10K
6.21 mi11:15:4046:377:3022:49
7:21
#10055
15K
9.32 mi11:38:221:09:197:2622:42
7:18
#9504
20K
12.43 mi12:01:141:32:117:2522:52
7:22
#9130
Half
13.11 mi12:06:061:37:037:244:52
7:08
#9043
25K
15.53 mi12:23:571:54:547:2417:51
7:22
#8819
30K
18.64 mi12:47:282:18:257:2623:31
7:34
#8570
20M
20.00 mi12:57:552:28:527:2710:27
7:41
#8507
21M
21.00 mi13:06:082:37:057:298:13
8:13
#8510
35K
21.75 mi13:11:442:42:417:295:36
7:29
#8485
23M
23.00 mi13:21:402:52:377:309:56
7:56
#8511
24M
24.00 mi13:29:183:00:157:317:38
7:38
#8477
40K
24.85 mi13:36:083:07:057:326:50
8:00
#8532
25.2M
25.20 mi13:39:093:10:067:333:01
8:45
#8569
Finish
26.22 mi13:47:263:18:237:348:17
8:08
#8717
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi11114238723878633(Top 32%)1292(Top 11%)1292(Top 69%)
10K6.21 mi3.10 mi10055+10591864+5231864+5239196(Top 35%)1495(Top 13%)1495(Top 80%)
15K9.32 mi3.11 mi9504+5511617+2471617+2478633(Top 32%)1292(Top 11%)1292(Top 69%)
20K12.43 mi3.11 mi9130+3741488+1291488+1298237(Top 31%)1194(Top 10%)1194(Top 64%)
Half13.11 mi0.68 mi9043+871461+271461+277467(Top 28%)924(Top 8%)924(Top 49%)
25K15.53 mi2.42 mi8819+2241382+791382+797733(Top 29%)1100(Top 10%)1100(Top 59%)
30K18.64 mi3.11 mi8570+2491323+591323+597732(Top 29%)1197(Top 10%)1197(Top 64%)
20M20.00 mi1.36 mi8507+631322+11322+18129(Top 31%)1450(Top 13%)1450(Top 77%)
21M21.00 mi1.00 mi8510-31341-191341-198714(Top 33%)1799(Top 16%)1799(Top 96%)
35K21.75 mi0.75 mi8485+251344-31344-38485(Top 32%)1684(Top 15%)1684(Top 90%)
23M23.00 mi1.25 mi8511-261378-341378-349312(Top 35%)2172(Top 19%)2172(Top 116%)
24M24.00 mi1.00 mi8477+341384-61384-68648(Top 32%)1935(Top 17%)1935(Top 103%)
40K24.85 mi0.85 mi8532-551423-391423-3910005(Top 38%)2642(Top 23%)2642(Top 141%)
25.2M25.20 mi0.35 mi8569-371443-201443-2011027(Top 41%)3185(Top 28%)3185(Top 170%)
Finish26.22 mi1.02 mi8717-1481535-921535-9212976(Top 49%)4192(Top 37%)4192(Top 223%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8633

Females

1292

F40-44

1292

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9196

Females

1495

F40-44

1495

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8633

Females

1292

F40-44

1292

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8237

Females

1194

F40-44

1194

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7467

Females

924

F40-44

924

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7733

Females

1100

F40-44

1100

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

7732

Females

1197

F40-44

1197

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8129

Females

1450

F40-44

1450

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

8714

Females

1799

F40-44

1799

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8485

Females

1684

F40-44

1684

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9312

Females

2172

F40-44

2172

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

8648

Females

1935

F40-44

1935

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10005

Females

2642

F40-44

2642

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11027

Females

3185

F40-44

3185

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

12976

Females

4192

F40-44

4192

Passing Analysis

Category:
Athletes Passed
3148*
Passed By
751
Net Change
+2397
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11114
5K → 10K1086*27+1059#11114#10055
10K → 15K573*22+551#10055#9504
15K → 20K38814+374#9504#9130
20K → Half903+87#9130#9043
Half → 25K23511+224#9043#8819
25K → 30K29243+249#8819#8570
30K → 20M11956+63#8570#8507
20M → 21M6972-3#8507#8510
21M → 35K5227+25#8510#8485
35K → 23M7197-26#8485#8511
23M → 24M8248+34#8511#8477
24M → 40K48103-55#8477#8532
40K → 25.2M1653-37#8532#8569
25.2M → Finish27175-148#8569#8717
TOTALS3148*751+2397

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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