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BOSTON MARATHON 2023

Karen Dewine

Bib: 23375•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 46%
Division (F55-59)
#0 / 815
Top 22%
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
8:54/mi
27:39
↑ 97↓ 3451.5%
10K· 6.21 mi
8:38/mi
54:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:42/mi
1:21:31
↑ 67↓ 78
20K· 12.43 mi
8:44/mi
1:48:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:30/mi
1:54:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:46/mi
2:15:44
↑ 66↓ 880.2%
30K· 18.64 mi
8:56/mi
2:43:28
↑ 181↓ 1480.2%
20M
8:47/mi
2:55:24
↑ 64↓ 500.2%
21M
9:06/mi
3:04:30
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
3:10:57
↑ 17↓ 861.7%
23M
8:42/mi
3:21:50
↑ 23↓ 630.6%
24M
8:37/mi
3:30:27
↓ 821.3%
40K· 24.85 mi
8:45/mi
3:37:56
↓ 200.3%
25.2M
9:11/mi
3:41:06
↑ 13↓ 160.2%
Finish· 26.22 mi
8:19/mi
3:49:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:54:28
Pace8:44 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:55:06
Pace8:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2727:398:5427:39
8:54
-
10K
6.21 mi11:50:1754:298:4626:50
8:38
-0:16
15K
9.32 mi12:17:191:21:318:4527:02
8:42
+0:04
20K
12.43 mi12:44:281:48:408:4527:09
8:44
+0:02
Half
13.11 mi12:50:161:54:288:445:48
8:30
-0:14
25K
15.53 mi13:11:322:15:448:4421:16
8:46
+0:16
30K
18.64 mi13:39:162:43:288:4627:44
8:56
+0:10
20M
20.00 mi13:51:122:55:248:4611:56
8:47
-0:09
21M
21.00 mi14:00:183:04:308:479:06
9:06
+0:19
35K
21.75 mi14:06:453:10:578:476:27
8:37
-0:29
23M
23.00 mi14:17:383:21:508:4710:53
8:42
+0:05
24M
24.00 mi14:26:153:30:278:468:37
8:37
-0:05
40K
24.85 mi14:33:443:37:568:467:29
8:45
+0:08
25.2M
25.20 mi14:36:543:41:068:463:10
9:11
+0:26
Finish
26.22 mi14:45:223:49:348:468:28
8:19
-0:52

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

8:19 /mi

Average Pace

8:46 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:46:24

99% of race

Time at Steady Pace

3:10

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:45 /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 mi11:23:2727:398:5427:39
8:54
#19987
10K
6.21 mi11:50:1754:298:4626:50
8:38
#19501
15K
9.32 mi12:17:191:21:318:4527:02
8:42
#19315
20K
12.43 mi12:44:281:48:408:4527:09
8:44
#19036
Half
13.11 mi12:50:161:54:288:445:48
8:30
#18978
25K
15.53 mi13:11:322:15:448:4421:16
8:46
#18790
30K
18.64 mi13:39:162:43:288:4627:44
8:56
#18390
20M
20.00 mi13:51:122:55:248:4611:56
8:47
#18153
21M
21.00 mi14:00:183:04:308:479:06
9:06
#17904
35K
21.75 mi14:06:453:10:578:476:27
8:37
#17822
23M
23.00 mi14:17:383:21:508:4710:53
8:42
#17617
24M
24.00 mi14:26:153:30:278:468:37
8:37
#17517
40K
24.85 mi14:33:443:37:568:467:29
8:45
#17414
25.2M
25.20 mi14:36:543:41:068:463:10
9:11
#17344
Finish
26.22 mi14:45:223:49:348:468:28
8:19
#17249
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi199877807780718985(Top 71%)7088(Top 62%)7088(Top 870%)
10K6.21 mi3.10 mi19501+4867462+3457462+34519054(Top 72%)7110(Top 62%)7110(Top 872%)
15K9.32 mi3.11 mi19315+1867324+1387324+13818985(Top 71%)7088(Top 62%)7088(Top 870%)
20K12.43 mi3.11 mi19036+2797141+1837141+18318355(Top 69%)6709(Top 59%)6709(Top 823%)
Half13.11 mi0.68 mi18978+587111+307111+3017749(Top 67%)6327(Top 55%)6327(Top 776%)
25K15.53 mi2.42 mi18790+1887007+1047007+10417790(Top 67%)6451(Top 56%)6451(Top 792%)
30K18.64 mi3.11 mi18390+4006797+2106797+21016809(Top 63%)5954(Top 52%)5954(Top 731%)
20M20.00 mi1.36 mi18153+2376671+1266671+12615350(Top 58%)5199(Top 46%)5199(Top 638%)
21M21.00 mi1.00 mi17904+2496534+1376534+13714023(Top 53%)4506(Top 39%)4506(Top 553%)
35K21.75 mi0.75 mi17822+826493+416493+4116020(Top 60%)5710(Top 50%)5710(Top 701%)
23M23.00 mi1.25 mi17617+2056389+1046389+10414370(Top 54%)4843(Top 42%)4843(Top 594%)
24M24.00 mi1.00 mi17517+1006340+496340+4915204(Top 57%)5355(Top 47%)5355(Top 657%)
40K24.85 mi0.85 mi17414+1036289+516289+5114866(Top 56%)5228(Top 46%)5228(Top 641%)
25.2M25.20 mi0.35 mi17344+706261+286261+2813651(Top 51%)4588(Top 40%)4588(Top 563%)
Finish26.22 mi1.02 mi17249+956215+466215+4614196(Top 53%)4857(Top 43%)4857(Top 596%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18985

Females

7088

F55-59

7088

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19054

Females

7110

F55-59

7110

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18985

Females

7088

F55-59

7088

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

18355

Females

6709

F55-59

6709

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17749

Females

6327

F55-59

6327

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17790

Females

6451

F55-59

6451

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16809

Females

5954

F55-59

5954

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15350

Females

5199

F55-59

5199

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14023

Females

4506

F55-59

4506

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

16020

Females

5710

F55-59

5710

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14370

Females

4843

F55-59

4843

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15204

Females

5355

F55-59

5355

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14866

Females

5228

F55-59

5228

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

13651

Females

4588

F55-59

4588

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

14196

Females

4857

F55-59

4857

Passing Analysis

Category:
Athletes Passed
3198
Passed By
460
Net Change
+2738
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19987
5K → 10K622136+486#19987#19501
10K → 15K297111+186#19501#19315
15K → 20K32748+279#19315#19036
20K → Half635+58#19036#18978
Half → 25K22032+188#18978#18790
25K → 30K42929+400#18790#18390
30K → 20M2425+237#18390#18153
20M → 21M2534+249#18153#17904
21M → 35K9715+82#17904#17822
35K → 23M22015+205#17822#17617
23M → 24M11919+100#17617#17517
24M → 40K11411+103#17517#17414
40K → 25.2M766+70#17414#17344
25.2M → Finish11924+95#17344#17249
TOTALS3198460+2738
📊

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