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BOSTON MARATHON 2023

Devra Leach

Bib: 18168•F

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 34%
Gender (Female)
#0 / 11423
Top 15%
Masters (Masters Women)
#0 / 6539
Top 6%
Division (F45-49)
#0 / 1817
Top 5%
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
7:39/mi
23:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:29/mi
47:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:10:13
↑ 67↓ 78
20K· 12.43 mi
7:33/mi
1:33:39
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:38:43
↑ 19↓ 370.5%
25K· 15.53 mi
7:32/mi
1:56:58
↑ 66↓ 880.2%
30K· 18.64 mi
7:42/mi
2:20:54
↑ 181↓ 1480.2%
20M
7:48/mi
2:31:30
↑ 64↓ 500.2%
21M
8:31/mi
2:40:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:45:36
↑ 17↓ 861.7%
23M
7:42/mi
2:55:15
↑ 23↓ 630.6%
24M
7:27/mi
3:02:42
↓ 821.3%
40K· 24.85 mi
7:37/mi
3:09:13
↓ 200.3%
25.2M
8:07/mi
3:12:01
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:19:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:43
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:40:53
Pace7:42 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5023:467:3923:46
7:39
-
10K
6.21 mi11:38:0547:017:3423:15
7:29
-0:10
15K
9.32 mi12:01:171:10:137:3223:12
7:28
-0:01
20K
12.43 mi12:24:431:33:397:3223:26
7:33
+0:05
Half
13.11 mi12:29:471:38:437:325:04
7:26
-0:07
25K
15.53 mi12:48:021:56:587:3218:15
7:32
+0:06
30K
18.64 mi13:11:582:20:547:3423:56
7:42
+0:10
20M
20.00 mi13:22:342:31:307:3410:36
7:48
+0:06
21M
21.00 mi13:31:052:40:017:378:31
8:31
+0:43
35K
21.75 mi13:36:402:45:367:375:35
7:28
-1:03
23M
23.00 mi13:46:192:55:157:379:39
7:42
+0:14
24M
24.00 mi13:53:463:02:427:377:27
7:27
-0:15
40K
24.85 mi14:00:173:09:137:376:31
7:37
+0:10
25.2M
25.20 mi14:03:053:12:017:372:48
8:07
+0:30
Finish
26.22 mi14:10:403:19:367:377:35
7:26
-0:41

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

7:26 /mi

Average Pace

7:37 /mi

Slowest Pace

8:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:05

96% of race

Time at Steady Pace

8:31

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:37 /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 mi11:14:5023:467:3923:46
7:39
#11026
10K
6.21 mi11:38:0547:017:3423:15
7:29
#10616
15K
9.32 mi12:01:171:10:137:3223:12
7:28
#10367
20K
12.43 mi12:24:431:33:397:3223:26
7:33
#10155
Half
13.11 mi12:29:471:38:437:325:04
7:26
#10106
25K
15.53 mi12:48:021:56:587:3218:15
7:32
#9887
30K
18.64 mi13:11:582:20:547:3423:56
7:42
#9655
20M
20.00 mi13:22:342:31:307:3410:36
7:48
#9567
21M
21.00 mi13:31:052:40:017:378:31
8:31
#9585
35K
21.75 mi13:36:402:45:367:375:35
7:28
#9529
23M
23.00 mi13:46:192:55:157:379:39
7:42
#9368
24M
24.00 mi13:53:463:02:427:377:27
7:27
#9245
40K
24.85 mi14:00:173:09:137:376:31
7:37
#9152
25.2M
25.20 mi14:03:053:12:017:372:48
8:07
#9127
Finish
26.22 mi14:10:403:19:367:377:35
7:26
#9077
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi11026233923399926(Top 37%)1806(Top 16%)1806(Top 99%)
10K6.21 mi3.10 mi10616+4102126+2132126+21310330(Top 39%)1973(Top 17%)1973(Top 109%)
15K9.32 mi3.11 mi10367+2491994+1321994+1329926(Top 37%)1806(Top 16%)1806(Top 99%)
20K12.43 mi3.11 mi10155+2121903+911903+919662(Top 36%)1759(Top 15%)1759(Top 97%)
Half13.11 mi0.68 mi10106+491885+181885+189671(Top 36%)1742(Top 15%)1742(Top 96%)
25K15.53 mi2.42 mi9887+2191804+811804+818992(Top 34%)1552(Top 14%)1552(Top 85%)
30K18.64 mi3.11 mi9655+2321742+621742+628676(Top 33%)1585(Top 14%)1585(Top 87%)
20M20.00 mi1.36 mi9567+881737+51737+58882(Top 33%)1749(Top 15%)1749(Top 96%)
21M21.00 mi1.00 mi9585-181760-231760-2310586(Top 40%)2659(Top 23%)2659(Top 146%)
35K21.75 mi0.75 mi9529+561758+21758+28315(Top 31%)1617(Top 14%)1617(Top 89%)
23M23.00 mi1.25 mi9368+1611718+401718+407794(Top 29%)1492(Top 13%)1492(Top 82%)
24M24.00 mi1.00 mi9245+1231696+221696+227399(Top 28%)1446(Top 13%)1446(Top 80%)
40K24.85 mi0.85 mi9152+931677+191677+197481(Top 28%)1554(Top 14%)1554(Top 86%)
25.2M25.20 mi0.35 mi9127+251675+21675+27294(Top 27%)1538(Top 13%)1538(Top 85%)
Finish26.22 mi1.02 mi9077+501682-71682-78117(Top 30%)1881(Top 16%)1881(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9926

Females

1806

F45-49

1806

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10330

Females

1973

F45-49

1973

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9926

Females

1806

F45-49

1806

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

9662

Females

1759

F45-49

1759

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9671

Females

1742

F45-49

1742

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

8992

Females

1552

F45-49

1552

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8676

Females

1585

F45-49

1585

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

8882

Females

1749

F45-49

1749

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10586

Females

2659

F45-49

2659

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8315

Females

1617

F45-49

1617

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7794

Females

1492

F45-49

1492

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7399

Females

1446

F45-49

1446

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7481

Females

1554

F45-49

1554

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7294

Females

1538

F45-49

1538

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8117

Females

1881

F45-49

1881

Passing Analysis

Category:
Athletes Passed
2565*
Passed By
616
Net Change
+1949
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11026
5K → 10K537*127+410#11026#10616
10K → 15K34091+249#10616#10367
15K → 20K272*60+212#10367#10155
20K → Half64*15+49#10155#10106
Half → 25K247*28+219#10106#9887
25K → 30K289*57+232#9887#9655
30K → 20M12234+88#9655#9567
20M → 21M7189-18#9567#9585
21M → 35K7620+56#9585#9529
35K → 23M17615+161#9529#9368
23M → 24M13512+123#9368#9245
24M → 40K10815+93#9245#9152
40K → 25.2M3611+25#9152#9127
25.2M → Finish9242+50#9127#9077
TOTALS2565*616+1949

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

📊

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