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BOSTON MARATHON 2023

Rebecca Inlow

Bib: 14511•F

NC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Division (F18-39)
#0 / 4884
Top 33%
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
7:57/mi
24:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:31/mi
48:02
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:11:15
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:34:46
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:39:53
↑ 19↓ 370.5%
25K· 15.53 mi
8:09/mi
1:59:38
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:23:35
↑ 181↓ 1480.2%
20M
7:44/mi
2:34:06
↑ 64↓ 500.2%
21M
8:01/mi
2:42:07
↑ 106↓ 241.6%
35K· 21.75 mi
7:45/mi
2:47:55
↑ 17↓ 861.7%
23M
7:54/mi
2:57:48
↑ 23↓ 630.6%
24M
7:54/mi
3:05:42
↓ 821.3%
40K· 24.85 mi
7:53/mi
3:12:26
↓ 200.3%
25.2M
8:19/mi
3:15:18
↑ 13↓ 160.2%
Finish· 26.22 mi
7:31/mi
3:22:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:53
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:43:05
Pace7:52 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4524:417:5724:41
7:57
-
10K
6.21 mi11:17:0648:027:4423:21
7:31
-0:26
15K
9.32 mi11:40:191:11:157:3923:13
7:28
-0:03
20K
12.43 mi12:03:501:34:467:3823:31
7:34
+0:06
Half
13.11 mi12:08:571:39:537:375:07
7:30
-0:04
25K
15.53 mi12:28:421:59:387:4219:45
8:09
+0:39
30K
18.64 mi12:52:392:23:357:4223:57
7:43
-0:26
20M
20.00 mi13:03:102:34:067:4210:31
7:44
+0:01
21M
21.00 mi13:11:112:42:077:438:01
8:01
+0:17
35K
21.75 mi13:16:592:47:557:435:48
7:45
-0:16
23M
23.00 mi13:26:522:57:487:449:53
7:54
+0:09
24M
24.00 mi13:34:463:05:427:447:54
7:54
0:00
40K
24.85 mi13:41:303:12:267:456:44
7:53
-0:01
25.2M
25.20 mi13:44:223:15:187:452:52
8:19
+0:26
Finish
26.22 mi13:52:023:22:587:457:40
7:31
-0:48

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

7:28 /mi

Average Pace

7:45 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:06

99% of race

Time at Steady Pace

2:52

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi10:53:4524:417:5724:41
7:57
#13613
10K
6.21 mi11:17:0648:027:4423:21
7:31
#12101
15K
9.32 mi11:40:191:11:157:3923:13
7:28
#11317
20K
12.43 mi12:03:501:34:467:3823:31
7:34
#10930
Half
13.11 mi12:08:571:39:537:375:07
7:30
#10897
25K
15.53 mi12:28:421:59:387:4219:45
8:09
#11307
30K
18.64 mi12:52:392:23:357:4223:57
7:43
#10802
20M
20.00 mi13:03:102:34:067:4210:31
7:44
#10595
21M
21.00 mi13:11:112:42:077:438:01
8:01
#10392
35K
21.75 mi13:16:592:47:557:435:48
7:45
#10367
23M
23.00 mi13:26:522:57:487:449:53
7:54
#10255
24M
24.00 mi13:34:463:05:427:447:54
7:54
#10243
40K
24.85 mi13:41:303:12:267:456:44
7:53
#10166
25.2M
25.20 mi13:44:223:15:187:452:52
8:19
#10125
Finish
26.22 mi13:52:023:22:587:457:40
7:31
#10044
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi13613378737879967(Top 37%)1827(Top 16%)1827(Top 37%)
10K6.21 mi3.10 mi12101+15122916+8712916+87110579(Top 40%)2094(Top 18%)2094(Top 43%)
15K9.32 mi3.11 mi11317+7842499+4172499+4179967(Top 37%)1827(Top 16%)1827(Top 37%)
20K12.43 mi3.11 mi10930+3872302+1972302+1979866(Top 37%)1857(Top 16%)1857(Top 38%)
Half13.11 mi0.68 mi10897+332286+162286+1610298(Top 39%)2031(Top 18%)2031(Top 42%)
25K15.53 mi2.42 mi11307-4102535-2492535-24913841(Top 52%)4117(Top 36%)4117(Top 84%)
30K18.64 mi3.11 mi10802+5052299+2362299+2368724(Top 33%)1607(Top 14%)1607(Top 33%)
20M20.00 mi1.36 mi10595+2072221+782221+788469(Top 32%)1593(Top 14%)1593(Top 33%)
21M21.00 mi1.00 mi10392+2032146+752146+757489(Top 28%)1320(Top 12%)1320(Top 27%)
35K21.75 mi0.75 mi10367+252150-42150-410319(Top 39%)2508(Top 22%)2508(Top 51%)
23M23.00 mi1.25 mi10255+1122124+262124+269061(Top 34%)2063(Top 18%)2063(Top 42%)
24M24.00 mi1.00 mi10243+122146-222146-2210532(Top 40%)2839(Top 25%)2839(Top 58%)
40K24.85 mi0.85 mi10166+772131+152131+159196(Top 35%)2258(Top 20%)2258(Top 46%)
25.2M25.20 mi0.35 mi10125+412125+62125+68463(Top 32%)2014(Top 18%)2014(Top 41%)
Finish26.22 mi1.02 mi10044+812115+102115+108751(Top 33%)2131(Top 19%)2131(Top 44%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9967

Females

1827

F18-39

1827

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10579

Females

2094

F18-39

2094

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9967

Females

1827

F18-39

1827

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

9866

Females

1857

F18-39

1857

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10298

Females

2031

F18-39

2031

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

13841

Females

4117

F18-39

4117

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8724

Females

1607

F18-39

1607

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8469

Females

1593

F18-39

1593

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7489

Females

1320

F18-39

1320

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10319

Females

2508

F18-39

2508

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9061

Females

2063

F18-39

2063

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10532

Females

2839

F18-39

2839

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9196

Females

2258

F18-39

2258

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8463

Females

2014

F18-39

2014

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8751

Females

2131

F18-39

2131

Passing Analysis

Category:
Athletes Passed
4312*
Passed By
743
Net Change
+3569
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13613
5K → 10K153624+1512#13613#12101
10K → 15K79814+784#12101#11317
15K → 20K41326+387#11317#10930
20K → Half4411+33#10930#10897
Half → 25K40450-410#10897#11307
25K → 30K51510+505#11307#10802
30K → 20M214*7+207#10802#10595
20M → 21M2129+203#10595#10392
21M → 35K5530+25#10392#10367
35K → 23M14028+112#10367#10255
23M → 24M6452+12#10255#10243
24M → 40K11235+77#10243#10166
40K → 25.2M53*12+41#10166#10125
25.2M → Finish11635+81#10125#10044
TOTALS4312*743+3569

* 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