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BOSTON MARATHON 2023

Leith Barry

Bib: 25805•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
9:02/mi
28:03
↑ 97↓ 3451.5%
10K· 6.21 mi
8:42/mi
55:04
↑ 79↓ 1380.4%
15K· 9.32 mi
8:39/mi
1:21:56
↑ 67↓ 78
20K· 12.43 mi
9:02/mi
1:50:00
↑ 106↓ 860.1%
Half· 13.11 mi
8:39/mi
1:55:54
↑ 19↓ 370.5%
25K· 15.53 mi
8:59/mi
2:17:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:16/mi
2:46:30
↑ 181↓ 1480.2%
20M
9:23/mi
2:59:15
↑ 64↓ 500.2%
21M
9:37/mi
3:08:52
↑ 106↓ 241.6%
35K· 21.75 mi
9:28/mi
3:15:57
↑ 17↓ 861.7%
23M
9:17/mi
3:27:34
↑ 23↓ 630.6%
24M
9:07/mi
3:36:41
↓ 821.3%
40K· 24.85 mi
9:07/mi
3:44:29
↓ 200.3%
25.2M
9:23/mi
3:47:43
↑ 13↓ 160.2%
Finish· 26.22 mi
8:25/mi
3:56:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:54
Pace8:50 /mi
2nd Half
Distance13.11 mi
Time2:00:24
Pace9:11 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:3728:039:0228:03
9:02
-
10K
6.21 mi12:10:3855:048:5227:01
8:42
-0:20
15K
9.32 mi12:37:301:21:568:4726:52
8:39
-0:03
20K
12.43 mi13:05:341:50:008:5128:04
9:02
+0:23
Half
13.11 mi13:11:281:55:548:505:54
8:39
-0:23
25K
15.53 mi13:33:162:17:428:5221:48
8:59
+0:20
30K
18.64 mi14:02:042:46:308:5628:48
9:16
+0:17
20M
20.00 mi14:14:492:59:158:5812:45
9:23
+0:07
21M
21.00 mi14:24:263:08:529:009:37
9:37
+0:14
35K
21.75 mi14:31:313:15:579:017:05
9:28
-0:09
23M
23.00 mi14:43:083:27:349:0111:37
9:17
-0:11
24M
24.00 mi14:52:153:36:419:029:07
9:07
-0:10
40K
24.85 mi15:00:033:44:299:027:48
9:07
0:00
25.2M
25.20 mi15:03:173:47:439:023:14
9:23
+0:16
Finish
26.22 mi15:11:523:56:189:018:35
8:25
-0:58

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

8:25 /mi

Average Pace

9:01 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:12

69% of race

Time at Steady Pace

1:13:06

31% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:01 /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 mi11:43:3728:039:0228:03
9:02
#20582
10K
6.21 mi12:10:3855:048:5227:01
8:42
#19995
15K
9.32 mi12:37:301:21:568:4726:52
8:39
#19556
20K
12.43 mi13:05:341:50:008:5128:04
9:02
#19596
Half
13.11 mi13:11:281:55:548:505:54
8:39
#19551
25K
15.53 mi13:33:162:17:428:5221:48
8:59
#19424
30K
18.64 mi14:02:042:46:308:5628:48
9:16
#19265
20M
20.00 mi14:14:492:59:158:5812:45
9:23
#19184
21M
21.00 mi14:24:263:08:529:009:37
9:37
#19025
35K
21.75 mi14:31:313:15:579:017:05
9:28
#19057
23M
23.00 mi14:43:083:27:349:0111:37
9:17
#18955
24M
24.00 mi14:52:153:36:419:029:07
9:07
#18899
40K
24.85 mi15:00:033:44:299:027:48
9:07
#18812
25.2M
25.20 mi15:03:173:47:439:023:14
9:23
#18747
Finish
26.22 mi15:11:523:56:189:018:35
8:25
#18622
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi205828158815818724(Top 70%)6941(Top 61%)6941(Top 575%)
10K6.21 mi3.10 mi19995+5877762+3967762+39619415(Top 73%)7325(Top 64%)7325(Top 607%)
15K9.32 mi3.11 mi19556+4397481+2817481+28118724(Top 70%)6941(Top 61%)6941(Top 575%)
20K12.43 mi3.11 mi19596-407485-47485-419865(Top 75%)7599(Top 67%)7599(Top 630%)
Half13.11 mi0.68 mi19551+457458+277458+2718669(Top 70%)6883(Top 60%)6883(Top 570%)
25K15.53 mi2.42 mi19424+1277372+867372+8618917(Top 71%)7085(Top 62%)7085(Top 587%)
30K18.64 mi3.11 mi19265+1597295+777295+7718489(Top 69%)6913(Top 61%)6913(Top 573%)
20M20.00 mi1.36 mi19184+817258+377258+3718402(Top 69%)6970(Top 61%)6970(Top 577%)
21M21.00 mi1.00 mi19025+1597181+777181+7716539(Top 62%)5943(Top 52%)5943(Top 492%)
35K21.75 mi0.75 mi19057-327206-257206-2519754(Top 74%)7782(Top 68%)7782(Top 645%)
23M23.00 mi1.25 mi18955+1027158+487158+4817437(Top 65%)6532(Top 57%)6532(Top 541%)
24M24.00 mi1.00 mi18899+567139+197139+1917775(Top 67%)6797(Top 60%)6797(Top 563%)
40K24.85 mi0.85 mi18812+877104+357104+3516691(Top 63%)6243(Top 55%)6243(Top 517%)
25.2M25.20 mi0.35 mi18747+657073+317073+3114691(Top 55%)5157(Top 45%)5157(Top 427%)
Finish26.22 mi1.02 mi18622+1257005+687005+6814928(Top 56%)5229(Top 46%)5229(Top 433%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

18724

Females

6941

F50-54

6941

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

19415

Females

7325

F50-54

7325

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

18724

Females

6941

F50-54

6941

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

19865

Females

7599

F50-54

7599

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18669

Females

6883

F50-54

6883

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18917

Females

7085

F50-54

7085

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18489

Females

6913

F50-54

6913

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18402

Females

6970

F50-54

6970

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

16539

Females

5943

F50-54

5943

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

19754

Females

7782

F50-54

7782

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17437

Females

6532

F50-54

6532

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

17775

Females

6797

F50-54

6797

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16691

Females

6243

F50-54

6243

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14691

Females

5157

F50-54

5157

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

14928

Females

5229

F50-54

5229

Passing Analysis

Category:
Athletes Passed
2683
Passed By
723
Net Change
+1960
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20582
5K → 10K715128+587#20582#19995
10K → 15K49152+439#19995#19556
15K → 20K143183-40#19556#19596
20K → Half5813+45#19596#19551
Half → 25K19063+127#19551#19424
25K → 30K24485+159#19424#19265
30K → 20M11837+81#19265#19184
20M → 21M17819+159#19184#19025
21M → 35K3264-32#19025#19057
35K → 23M12523+102#19057#18955
23M → 24M8428+56#18955#18899
24M → 40K10114+87#18899#18812
40K → 25.2M672+65#18812#18747
25.2M → Finish13712+125#18747#18622
TOTALS2683723+1960
📊

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