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BOSTON MARATHON 2023

Elizabeth Larson

Bib: 20793•F

WI

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

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
8:49/mi
27:23
↑ 97↓ 3451.5%
10K· 6.21 mi
8:34/mi
54:01
↑ 79↓ 1380.4%
15K· 9.32 mi
8:34/mi
1:20:38
↑ 67↓ 78
20K· 12.43 mi
8:38/mi
1:47:26
↑ 106↓ 860.1%
Half· 13.11 mi
8:37/mi
1:53:19
↑ 19↓ 370.5%
25K· 15.53 mi
8:42/mi
2:14:25
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:43:05
↑ 181↓ 1480.2%
20M
9:22/mi
2:55:49
↑ 64↓ 500.2%
21M
10:06/mi
3:05:55
↑ 106↓ 241.6%
35K· 21.75 mi
9:17/mi
3:12:52
↑ 17↓ 861.7%
23M
9:33/mi
3:24:49
↑ 23↓ 630.6%
24M
9:23/mi
3:34:12
↓ 821.3%
40K· 24.85 mi
9:24/mi
3:42:14
↓ 200.3%
25.2M
10:06/mi
3:45:43
↑ 13↓ 160.2%
Finish· 26.22 mi
9:02/mi
3:54:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:19
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:01:36
Pace9:17 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3427:238:4927:23
8:49
-
10K
6.21 mi11:50:1254:018:4226:38
8:34
-0:15
15K
9.32 mi12:16:491:20:388:3926:37
8:34
0:00
20K
12.43 mi12:43:371:47:268:3926:48
8:38
+0:04
Half
13.11 mi12:49:301:53:198:395:53
8:37
-0:01
25K
15.53 mi13:10:362:14:258:3921:06
8:42
+0:05
30K
18.64 mi13:39:162:43:058:4528:40
9:14
+0:32
20M
20.00 mi13:52:002:55:498:4712:44
9:22
+0:08
21M
21.00 mi14:02:063:05:558:5110:06
10:06
+0:44
35K
21.75 mi14:09:033:12:528:526:57
9:17
-0:49
23M
23.00 mi14:21:003:24:498:5411:57
9:33
+0:16
24M
24.00 mi14:30:233:34:128:569:23
9:23
-0:10
40K
24.85 mi14:38:253:42:148:568:02
9:24
+0:01
25.2M
25.20 mi14:41:543:45:438:573:29
10:06
+0:42
Finish
26.22 mi14:51:063:54:558:589:12
9:02
-1:04

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

8:34 /mi

Average Pace

8:58 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:29:23

89% of race

Time at Steady Pace

25:32

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:58 /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 mi11:23:3427:238:4927:23
8:49
#19547
10K
6.21 mi11:50:1254:018:4226:38
8:34
#19074
15K
9.32 mi12:16:491:20:388:3926:37
8:34
#18757
20K
12.43 mi12:43:371:47:268:3926:48
8:38
#18490
Half
13.11 mi12:49:301:53:198:395:53
8:37
#18475
25K
15.53 mi13:10:362:14:258:3921:06
8:42
#18290
30K
18.64 mi13:39:162:43:058:4528:40
9:14
#18276
20M
20.00 mi13:52:002:55:498:4712:44
9:22
#18290
21M
21.00 mi14:02:063:05:558:5110:06
10:06
#18299
35K
21.75 mi14:09:033:12:528:526:57
9:17
#18327
23M
23.00 mi14:21:003:24:498:5411:57
9:33
#18333
24M
24.00 mi14:30:233:34:128:569:23
9:23
#18374
40K
24.85 mi14:38:253:42:148:568:02
9:24
#18355
25.2M
25.20 mi14:41:543:45:438:573:29
10:06
#18357
Finish
26.22 mi14:51:063:54:558:589:12
9:02
#18357
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi195477544754418253(Top 69%)6647(Top 58%)6647(Top 354%)
10K6.21 mi3.10 mi19074+4737200+3447200+34418686(Top 70%)6891(Top 60%)6891(Top 367%)
15K9.32 mi3.11 mi18757+3176981+2196981+21918253(Top 69%)6647(Top 58%)6647(Top 354%)
20K12.43 mi3.11 mi18490+2676795+1866795+18617665(Top 66%)6327(Top 55%)6327(Top 337%)
Half13.11 mi0.68 mi18475+156791+46791+418513(Top 70%)6790(Top 59%)6790(Top 362%)
25K15.53 mi2.42 mi18290+1856701+906701+9017404(Top 65%)6230(Top 55%)6230(Top 332%)
30K18.64 mi3.11 mi18276+146726-256726-2518286(Top 69%)6808(Top 60%)6808(Top 363%)
20M20.00 mi1.36 mi18290-146759-336759-3318338(Top 69%)6928(Top 61%)6928(Top 369%)
21M21.00 mi1.00 mi18299-96773-146773-1418404(Top 69%)7002(Top 61%)7002(Top 373%)
35K21.75 mi0.75 mi18327-286794-216794-2119118(Top 72%)7448(Top 65%)7448(Top 397%)
23M23.00 mi1.25 mi18333-66810-166810-1618504(Top 70%)7131(Top 62%)7131(Top 380%)
24M24.00 mi1.00 mi18374-416841-316841-3118796(Top 71%)7325(Top 64%)7325(Top 390%)
40K24.85 mi0.85 mi18355+196844-36844-317952(Top 67%)6924(Top 61%)6924(Top 369%)
25.2M25.20 mi0.35 mi18357-26847-36847-317816(Top 67%)6866(Top 60%)6866(Top 366%)
Finish26.22 mi1.02 mi183576853-66853-618131(Top 68%)6969(Top 61%)6969(Top 371%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18253

Females

6647

F40-44

6647

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

18686

Females

6891

F40-44

6891

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18253

Females

6647

F40-44

6647

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

17665

Females

6327

F40-44

6327

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18513

Females

6790

F40-44

6790

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

17404

Females

6230

F40-44

6230

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18286

Females

6808

F40-44

6808

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18338

Females

6928

F40-44

6928

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

18404

Females

7002

F40-44

7002

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

19118

Females

7448

F40-44

7448

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

18504

Females

7131

F40-44

7131

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18796

Females

7325

F40-44

7325

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17952

Females

6924

F40-44

6924

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17816

Females

6866

F40-44

6866

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

18131

Females

6969

F40-44

6969

Passing Analysis

Category:
Athletes Passed
2257
Passed By
1067
Net Change
+1190
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19547
5K → 10K644171+473#19547#19074
10K → 15K38770+317#19074#18757
15K → 20K31548+267#18757#18490
20K → Half3924+15#18490#18475
Half → 25K22944+185#18475#18290
25K → 30K188174+14#18290#18276
30K → 20M88102-14#18276#18290
20M → 21M8594-9#18290#18299
21M → 35K3563-28#18299#18327
35K → 23M8086-6#18327#18333
23M → 24M4182-41#18333#18374
24M → 40K5839+19#18374#18355
40K → 25.2M1820-2#18355#18357
25.2M → Finish50500#18357#18357
TOTALS22571067+1190
📊

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