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BOSTON MARATHON 2023

Ashley Stein

Bib: 20412•F

MI

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
8:08/mi
25:15
↑ 97↓ 3451.5%
10K· 6.21 mi
8:06/mi
50:25
↑ 79↓ 1380.4%
15K· 9.32 mi
8:13/mi
1:15:56
↑ 67↓ 78
20K· 12.43 mi
8:25/mi
1:42:04
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:47:46
↑ 19↓ 370.5%
25K· 15.53 mi
8:33/mi
2:08:30
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:36:27
↑ 181↓ 1480.2%
20M
9:35/mi
2:49:29
↑ 64↓ 500.2%
21M
10:35/mi
3:00:04
↑ 106↓ 241.6%
35K· 21.75 mi
9:35/mi
3:07:14
↑ 17↓ 861.7%
23M
10:13/mi
3:20:01
↑ 23↓ 630.6%
24M
9:57/mi
3:29:58
↓ 821.3%
40K· 24.85 mi
10:08/mi
3:38:38
↓ 200.3%
25.2M
11:39/mi
3:42:39
↑ 13↓ 160.2%
Finish· 26.22 mi
10:11/mi
3:53:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:46
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:05:16
Pace9:33 /mi
📊Positive Split: 16.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2625:158:0825:15
8:08
-
10K
6.21 mi11:42:3650:258:0725:10
8:06
-0:02
15K
9.32 mi12:08:071:15:568:0925:31
8:13
+0:07
20K
12.43 mi12:34:151:42:048:1326:08
8:25
+0:12
Half
13.11 mi12:39:571:47:468:135:42
8:21
-0:04
25K
15.53 mi13:00:412:08:308:1620:44
8:33
+0:12
30K
18.64 mi13:28:382:36:278:2427:57
9:00
+0:27
20M
20.00 mi13:41:402:49:298:2813:02
9:35
+0:35
21M
21.00 mi13:52:153:00:048:3410:35
10:35
+1:00
35K
21.75 mi13:59:253:07:148:377:10
9:35
-1:00
23M
23.00 mi14:12:123:20:018:4212:47
10:13
+0:38
24M
24.00 mi14:22:093:29:588:459:57
9:57
-0:16
40K
24.85 mi14:30:493:38:388:488:40
10:08
+0:11
25.2M
25.20 mi14:34:503:42:398:504:01
11:39
+1:31
Finish
26.22 mi14:45:133:53:028:5410:23
10:11
-1:28

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

8:06 /mi

Average Pace

8:54 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:27

67% of race

Time at Steady Pace

30:09

13% of race

Time at Slower Pace

46:26

20% of race

Average Pace: 8:53 /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 mi11:17:2625:158:0825:15
8:08
#14932
10K
6.21 mi11:42:3650:258:0725:10
8:06
#15219
15K
9.32 mi12:08:071:15:568:0925:31
8:13
#15474
20K
12.43 mi12:34:151:42:048:1326:08
8:25
#15664
Half
13.11 mi12:39:571:47:468:135:42
8:21
#15723
25K
15.53 mi13:00:412:08:308:1620:44
8:33
#15841
30K
18.64 mi13:28:382:36:278:2427:57
9:00
#16107
20M
20.00 mi13:41:402:49:298:2813:02
9:35
#16370
21M
21.00 mi13:52:153:00:048:3410:35
10:35
#16662
35K
21.75 mi13:59:253:07:148:377:10
9:35
#16813
23M
23.00 mi14:12:123:20:018:4212:47
10:13
#17146
24M
24.00 mi14:22:093:29:588:459:57
9:57
#17390
40K
24.85 mi14:30:493:38:388:488:40
10:08
#17602
25.2M
25.20 mi14:34:503:42:398:504:01
11:39
#17734
Finish
26.22 mi14:45:133:53:028:5410:23
10:11
#17980
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi149324603460315970(Top 60%)5283(Top 46%)5283(Top 281%)
10K6.21 mi3.10 mi15219-2874782-1794782-17915531(Top 58%)4975(Top 44%)4975(Top 265%)
15K9.32 mi3.11 mi15474-2554963-1814963-18115970(Top 60%)5283(Top 46%)5283(Top 281%)
20K12.43 mi3.11 mi15664-1905096-1335096-13316329(Top 61%)5550(Top 49%)5550(Top 296%)
Half13.11 mi0.68 mi15723-595138-425138-4216922(Top 64%)5868(Top 51%)5868(Top 312%)
25K15.53 mi2.42 mi15841-1185239-1015239-10116520(Top 62%)5739(Top 50%)5739(Top 306%)
30K18.64 mi3.11 mi16107-2665439-2005439-20017165(Top 64%)6172(Top 54%)6172(Top 329%)
20M20.00 mi1.36 mi16370-2635628-1895628-18919196(Top 72%)7393(Top 65%)7393(Top 394%)
21M21.00 mi1.00 mi16662-2925797-1695797-16919856(Top 75%)7846(Top 69%)7846(Top 418%)
35K21.75 mi0.75 mi16813-1515885-885885-8820101(Top 76%)7984(Top 70%)7984(Top 425%)
23M23.00 mi1.25 mi17146-3336101-2166101-21620607(Top 77%)8292(Top 73%)8292(Top 442%)
24M24.00 mi1.00 mi17390-2446263-1626263-16220654(Top 78%)8352(Top 73%)8352(Top 445%)
40K24.85 mi0.85 mi17602-2126406-1436406-14320333(Top 76%)8238(Top 72%)8238(Top 439%)
25.2M25.20 mi0.35 mi17734-1326485-796485-7921858(Top 82%)9042(Top 79%)9042(Top 481%)
Finish26.22 mi1.02 mi17980-2466644-1596644-15922270(Top 84%)9261(Top 81%)9261(Top 493%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

15970

Females

5283

F40-44

5283

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

15531

Females

4975

F40-44

4975

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

15970

Females

5283

F40-44

5283

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

16329

Females

5550

F40-44

5550

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

16922

Females

5868

F40-44

5868

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

16520

Females

5739

F40-44

5739

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

17165

Females

6172

F40-44

6172

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

19196

Females

7393

F40-44

7393

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

19856

Females

7846

F40-44

7846

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20101

Females

7984

F40-44

7984

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

20607

Females

8292

F40-44

8292

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20654

Females

8352

F40-44

8352

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20333

Females

8238

F40-44

8238

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21858

Females

9042

F40-44

9042

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22270

Females

9261

F40-44

9261

Passing Analysis

Category:
Athletes Passed
744
Passed By
3792
Net Change
-3048
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14932
5K → 10K178465-287#14932#15219
10K → 15K87342-255#15219#15474
15K → 20K121311-190#15474#15664
20K → Half1271-59#15664#15723
Half → 25K100218-118#15723#15841
25K → 30K113379-266#15841#16107
30K → 20M29292-263#16107#16370
20M → 21M21313-292#16370#16662
21M → 35K15166-151#16662#16813
35K → 23M24357-333#16813#17146
23M → 24M17261-244#17146#17390
24M → 40K15227-212#17390#17602
40K → 25.2M4136-132#17602#17734
25.2M → Finish8254-246#17734#17980
TOTALS7443792-3048
📊

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