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BOSTON MARATHON 2023

Rebecca Bemis

Bib: 26874•F

DE

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:02
Rank: #24243
Start → 5K
32:02 | 10:19/mi
10K· 6.21 mi
1:03:49
Rank: #24211 (+32)
5K → 10K
31:47 | 10:14/mi
15K· 9.32 mi
1:36:09
Rank: #24259 (-48)
10K → 15K
32:20 | 10:24/mi
20K· 12.43 mi
2:09:09
Rank: #24206 (+53)
15K → 20K
33:00 | 10:37/mi
Half· 13.11 mi
2:16:23
Rank: #24206
20K → Half
7:14 | 10:36/mi
25K· 15.53 mi
2:42:35
Rank: #24105 (+101)
Half → 25K
26:12 | 10:48/mi
30K· 18.64 mi
3:17:54
Rank: #24016 (+89)
25K → 30K
35:19 | 11:22/mi
20M
3:33:39
Rank: #24007 (+9)
30K → 20M
15:45 | 11:35/mi
21M
3:46:06
Rank: #23982 (+25)
20M → 21M
12:27 | 12:27/mi
35K· 21.75 mi
3:54:36
Rank: #23990 (-8)
21M → 35K
8:30 | 11:22/mi
23M
4:08:49
Rank: #23947 (+43)
35K → 23M
14:13 | 11:21/mi
24M
4:19:57
Rank: #23927 (+20)
23M → 24M
11:08 | 11:08/mi
40K· 24.85 mi
4:29:42
Rank: #23880 (+47)
24M → 40K
9:45 | 11:24/mi
25.2M
4:34:03
Rank: #23882 (-2)
40K → 25.2M
4:21 | 12:37/mi
Finish· 26.22 mi
4:45:27
Rank: #23897 (-15)
25.2M → Finish
11:24 | 11:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:23
Pace10:24 /mi
2nd Half
Distance13.11 mi
Time2:29:04
Pace11:22 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:3932:0210:1932:02
10:19
-
10K
6.21 mi12:26:261:03:4910:1631:47
10:14
-0:05
15K
9.32 mi12:58:461:36:0910:1932:20
10:24
+0:10
20K
12.43 mi13:31:462:09:0910:2433:00
10:37
+0:13
Half
13.11 mi13:39:002:16:2310:247:14
10:36
-0:01
25K
15.53 mi14:05:122:42:3510:2826:12
10:48
+0:12
30K
18.64 mi14:40:313:17:5410:3735:19
11:22
+0:34
20M
20.00 mi14:56:163:33:3910:4115:45
11:35
+0:13
21M
21.00 mi15:08:433:46:0610:4612:27
12:27
+0:52
35K
21.75 mi15:17:133:54:3610:478:30
11:22
-1:05
23M
23.00 mi15:31:264:08:4910:4914:13
11:21
-0:01
24M
24.00 mi15:42:344:19:5710:5011:08
11:08
-0:13
40K
24.85 mi15:52:194:29:4210:519:45
11:24
+0:16
25.2M
25.20 mi15:56:404:34:0310:534:21
12:37
+1:13
Finish
26.22 mi16:08:044:45:2710:5411:24
11:11
-1:26

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

10:14 /mi

Average Pace

10:54 /mi

Slowest Pace

12:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:35

57% of race

Time at Steady Pace

1:30:19

32% of race

Time at Slower Pace

32:33

11% of race

Average Pace: 10:53 /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 mi11:54:3932:0210:1932:02
10:19
#24243
10K
6.21 mi12:26:261:03:4910:1631:47
10:14
#24211
15K
9.32 mi12:58:461:36:0910:1932:20
10:24
#24259
20K
12.43 mi13:31:462:09:0910:2433:00
10:37
#24206
Half
13.11 mi13:39:002:16:2310:247:14
10:36
#24206
25K
15.53 mi14:05:122:42:3510:2826:12
10:48
#24105
30K
18.64 mi14:40:313:17:5410:3735:19
11:22
#24016
20M
20.00 mi14:56:163:33:3910:4115:45
11:35
#24007
21M
21.00 mi15:08:433:46:0610:4612:27
12:27
#23982
35K
21.75 mi15:17:133:54:3610:478:30
11:22
#23990
23M
23.00 mi15:31:264:08:4910:4914:13
11:21
#23947
24M
24.00 mi15:42:344:19:5710:5011:08
11:08
#23927
40K
24.85 mi15:52:194:29:4210:519:45
11:24
#23880
25.2M
25.20 mi15:56:404:34:0310:534:21
12:37
#23882
Finish
26.22 mi16:08:044:45:2710:5411:24
11:11
#23897
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi24243100101001024291(Top 91%)10050(Top 88%)10050(Top 535%)
10K6.21 mi3.10 mi24211+3210002+810002+824194(Top 91%)9992(Top 87%)9992(Top 532%)
15K9.32 mi3.11 mi24259-4810036-3410036-3424291(Top 91%)10050(Top 88%)10050(Top 535%)
20K12.43 mi3.11 mi24206+5310005+3110005+3124052(Top 90%)9940(Top 87%)9940(Top 529%)
Half13.11 mi0.68 mi2420610010-510010-524382(Top 92%)10143(Top 89%)10143(Top 540%)
25K15.53 mi2.42 mi24105+1019965+459965+4523680(Top 89%)9775(Top 86%)9775(Top 521%)
30K18.64 mi3.11 mi24016+899928+379928+3723676(Top 89%)9823(Top 86%)9823(Top 523%)
20M20.00 mi1.36 mi24007+99930-29930-223664(Top 89%)9877(Top 86%)9877(Top 526%)
21M21.00 mi1.00 mi23982+259931-19931-123397(Top 88%)9758(Top 85%)9758(Top 520%)
35K21.75 mi0.75 mi23990-89942-119942-1123910(Top 90%)10084(Top 88%)10084(Top 537%)
23M23.00 mi1.25 mi23947+439923+199923+1922999(Top 86%)9587(Top 84%)9587(Top 510%)
24M24.00 mi1.00 mi23927+209925-29925-223301(Top 88%)9799(Top 86%)9799(Top 522%)
40K24.85 mi0.85 mi23880+479905+209905+2023075(Top 87%)9702(Top 85%)9702(Top 517%)
25.2M25.20 mi0.35 mi23882-29910-59910-523477(Top 88%)9917(Top 87%)9917(Top 528%)
Finish26.22 mi1.02 mi23897-159923-139923-1324288(Top 91%)10298(Top 90%)10298(Top 548%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

24291

Females

10050

F40-44

10050

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

24194

Females

9992

F40-44

9992

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

24291

Females

10050

F40-44

10050

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

24052

Females

9940

F40-44

9940

20K→Half

12.4 - 13.1 mi

Top 92%
×2stories
+19ft-37ft

Overall

24382

Females

10143

F40-44

10143

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

23680

Females

9775

F40-44

9775

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

23676

Females

9823

F40-44

9823

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

23664

Females

9877

F40-44

9877

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

23397

Females

9758

F40-44

9758

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

23910

Females

10084

F40-44

10084

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

22999

Females

9587

F40-44

9587

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

23301

Females

9799

F40-44

9799

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23075

Females

9702

F40-44

9702

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23477

Females

9917

F40-44

9917

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

24288

Females

10298

F40-44

10298

Passing Analysis

Category:
Athletes Passed
1069
Passed By
723
Net Change
+346
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24243
5K → 10K214182+32#24243#24211
10K → 15K107155-48#24211#24259
15K → 20K13279+53#24259#24206
20K → Half22220#24206#24206
Half → 25K14443+101#24206#24105
25K → 30K14556+89#24105#24016
30K → 20M5243+9#24016#24007
20M → 21M5126+25#24007#23982
21M → 35K2533-8#23982#23990
35K → 23M5916+43#23990#23947
23M → 24M3616+20#23947#23927
24M → 40K525+47#23927#23880
40K → 25.2M1012-2#23880#23882
25.2M → Finish2035-15#23882#23897
TOTALS1069723+346
📊

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