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BOSTON MARATHON 2023

Emily Stein

MD

Bib: 14496 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 42%
Gender (Female)
#0 / 11423
Top 23%
Masters (Masters Women)
#0 / 6539
Top 11%
Division (F45-49)
#0 / 1817
Top 12%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:46/mi
24:07
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:43/mi
48:06
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:52/mi
1:12:32
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:08/mi
1:37:47
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:59/mi
1:43:14
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:00/mi
2:02:37
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:06/mi
2:27:46
↑ 181↓ 1480.2%
138 ft elev
20M
8:01/mi
2:38:40
↑ 64↓ 500.2%
148 ft elev
21M
8:16/mi
2:46:56
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:40/mi
2:52:40
↑ 17↓ 861.7%
156 ft elev
23M
7:44/mi
3:02:21
↑ 23↓ 630.6%
116 ft elev
24M
7:26/mi
3:09:47
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:38/mi
3:16:19
↓ 200.3%
20 ft elev
25.2M
8:07/mi
3:19:07
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:14/mi
3:26:29
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:43:147:52 /mi⚖️ balanced
2nd Half
1:43:157:53 /mi⚖️ balanced
Even split — consistent pacing between halves
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:077:463.11 mi24:07
7:46
-
10K
48:067:443.10 mi23:59
7:43
-0:03
15K
1:12:327:473.11 mi24:26
7:52
+0:09
20K
1:37:477:523.11 mi25:15
8:08
+0:16
Half(13.11 mi)
1:43:147:520.68 mi5:27
7:59
-0:09
25K
2:02:377:542.42 mi19:23
8:00
+0:01
30K
2:27:467:563.11 mi25:09
8:06
+0:06
20M
2:38:407:561.36 mi10:54
8:01
-0:05
21M
2:46:567:571.00 mi8:16
8:16
+0:15
35K
2:52:407:560.75 mi5:44
7:40
-0:36
23M
3:02:217:561.25 mi9:41
7:44
+0:04
24M
3:09:477:541.00 mi7:26
7:26
-0:18
40K
3:16:197:540.85 mi6:32
7:38
+0:12
25.2M
3:19:077:540.35 mi2:48
8:07
+0:29
Finish(26.22 mi)
3:26:297:531.02 mi7:22
7:14
-0:53
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:14 /mi

Average Pace

7:53 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:49:17

53% of race

Time at Steady Pace

1:37:12

47% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:53 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi12032288828881323236213621
10K3.10 mi12196-1642974-862974-861244131123112
15K3.11 mi12515-3193184-2103184-2101323236213621
20K3.11 mi13025-5103498-3143498-3141441043464346
Half(13.11 mi)0.68 mi13085-603534-363534-361426642104210
25K2.42 mi12988+973495+393495+391269834633463
30K3.11 mi12699+2893373+1223373+1221160129572957
20M1.36 mi12491+2083264+1093264+1091045824662466
21M1.00 mi12253+2383152+1123152+112906319601960
35K0.75 mi12149+1043117+353117+35974922532253
23M1.25 mi11878+2712980+1372980+137799515921592
24M1.00 mi11644+2342867+1132867+113731214211421
40K0.85 mi11469+1752794+732794+73761616231623
25.2M0.35 mi11373+962755+392755+39732015641564
Finish(26.22 mi)1.02 mi11126+2472653+1022653+102666213131313

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

13232

Females

3621

F45-49

3621

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12441

Females

3112

F45-49

3112

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

13232

Females

3621

F45-49

3621

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

14410

Females

4346

F45-49

4346

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

14266

Females

4210

F45-49

4210

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12698

Females

3463

F45-49

3463

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11601

Females

2957

F45-49

2957

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10458

Females

2466

F45-49

2466

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9063

Females

1960

F45-49

1960

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9749

Females

2253

F45-49

2253

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

7995

Females

1592

F45-49

1592

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7312

Females

1421

F45-49

1421

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7616

Females

1623

F45-49

1623

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7320

Females

1564

F45-49

1564

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6662

Females

1313

F45-49

1313

Passing Analysis

Category:
Passed
2564
Passed By
1658
Net Change
+906
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12032
5K → 10K223387-164#12032#12196
10K → 15K101420-319#12196#12515
15K → 20K66576-510#12515#13025
20K → Half1272-60#13025#13085
Half → 25K19396+97#13085#12988
25K → 30K34051+289#12988#12699
30K → 20M23022+208#12699#12491
20M → 21M24810+238#12491#12253
21M → 35K1117+104#12253#12149
35K → 23M2743+271#12149#11878
23M → 24M2351+234#11878#11644
24M → 40K1849+175#11644#11469
40K → 25.2M993+96#11469#11373
25.2M → Finish2481+247#11373#11126
TOTALS25641658+906

Passing Charts

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