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BOSTON MARATHON 2023

Stephanie Smith

Bib: 12832•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 14%
Division (F18-39)
#0 / 4884
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:21
Rank: #9769
Start → 5K
23:21 | 7:31/mi
10K· 6.21 mi
46:31
Rank: #9897 (-128)
5K → 10K
23:10 | 7:27/mi
15K· 9.32 mi
1:09:44
Rank: #9877 (+20)
10K → 15K
23:13 | 7:28/mi
20K· 12.43 mi
1:33:03
Rank: #9711 (+166)
15K → 20K
23:19 | 7:30/mi
Half· 13.11 mi
1:38:05
Rank: #9683 (+28)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:56:21
Rank: #9555 (+128)
Half → 25K
18:16 | 7:32/mi
30K· 18.64 mi
2:20:17
Rank: #9364 (+191)
25K → 30K
23:56 | 7:42/mi
20M
2:30:47
Rank: #9268 (+96)
30K → 20M
10:30 | 7:44/mi
21M
2:38:38
Rank: #9052 (+216)
20M → 21M
7:51 | 7:51/mi
35K· 21.75 mi
2:44:30
Rank: #9112 (-60)
21M → 35K
5:52 | 7:51/mi
23M
2:54:12
Rank: #9027 (+85)
35K → 23M
9:42 | 7:45/mi
24M
3:01:45
Rank: #8968 (+59)
23M → 24M
7:33 | 7:33/mi
40K· 24.85 mi
3:08:17
Rank: #8895 (+73)
24M → 40K
6:32 | 7:38/mi
25.2M
3:11:09
Rank: #8865 (+30)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:18:31
Rank: #8746 (+119)
25.2M → Finish
7:22 | 7:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:05
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:40:26
Pace7:40 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2823:217:3123:21
7:31
-
10K
6.21 mi11:13:3846:317:2923:10
7:27
-0:04
15K
9.32 mi11:36:511:09:447:2923:13
7:28
+0:01
20K
12.43 mi12:00:101:33:037:2923:19
7:30
+0:02
Half
13.11 mi12:05:121:38:057:295:02
7:23
-0:07
25K
15.53 mi12:23:281:56:217:2918:16
7:32
+0:09
30K
18.64 mi12:47:242:20:177:3223:56
7:42
+0:10
20M
20.00 mi12:57:542:30:477:3210:30
7:44
+0:02
21M
21.00 mi13:05:452:38:387:337:51
7:51
+0:07
35K
21.75 mi13:11:372:44:307:345:52
7:51
0:00
23M
23.00 mi13:21:192:54:127:349:42
7:45
-0:06
24M
24.00 mi13:28:523:01:457:347:33
7:33
-0:12
40K
24.85 mi13:35:243:08:177:356:32
7:38
+0:05
25.2M
25.20 mi13:38:163:11:097:352:52
8:19
+0:41
Finish
26.22 mi13:45:383:18:317:357:22
7:14
-1:05

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

7:14 /mi

Average Pace

7:35 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:39

99% of race

Time at Steady Pace

2:52

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi10:50:2823:217:3123:21
7:31
#9769
10K
6.21 mi11:13:3846:317:2923:10
7:27
#9897
15K
9.32 mi11:36:511:09:447:2923:13
7:28
#9877
20K
12.43 mi12:00:101:33:037:2923:19
7:30
#9711
Half
13.11 mi12:05:121:38:057:295:02
7:23
#9683
25K
15.53 mi12:23:281:56:217:2918:16
7:32
#9555
30K
18.64 mi12:47:242:20:177:3223:56
7:42
#9364
20M
20.00 mi12:57:542:30:477:3210:30
7:44
#9268
21M
21.00 mi13:05:452:38:387:337:51
7:51
#9052
35K
21.75 mi13:11:372:44:307:345:52
7:51
#9112
23M
23.00 mi13:21:192:54:127:349:42
7:45
#9027
24M
24.00 mi13:28:523:01:457:347:33
7:33
#8968
40K
24.85 mi13:35:243:08:177:356:32
7:38
#8895
25.2M
25.20 mi13:38:163:11:097:352:52
8:19
#8865
Finish
26.22 mi13:45:383:18:317:357:22
7:14
#8746
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9769174117419959(Top 37%)1819(Top 16%)1819(Top 37%)
10K6.21 mi3.10 mi9897-1281794-531794-5310132(Top 38%)1880(Top 16%)1880(Top 38%)
15K9.32 mi3.11 mi9877+201774+201774+209959(Top 37%)1819(Top 16%)1819(Top 37%)
20K12.43 mi3.11 mi9711+1661707+671707+679358(Top 35%)1625(Top 14%)1625(Top 33%)
Half13.11 mi0.68 mi9683+281699+81699+89300(Top 35%)1592(Top 14%)1592(Top 33%)
25K15.53 mi2.42 mi9555+1281669+301669+309040(Top 34%)1568(Top 14%)1568(Top 32%)
30K18.64 mi3.11 mi9364+1911635+341635+348673(Top 33%)1582(Top 14%)1582(Top 32%)
20M20.00 mi1.36 mi9268+961621+141621+148386(Top 32%)1550(Top 14%)1550(Top 32%)
21M21.00 mi1.00 mi9052+2161551+701551+706390(Top 24%)923(Top 8%)923(Top 19%)
35K21.75 mi0.75 mi9112-601593-421593-4211045(Top 41%)2917(Top 26%)2917(Top 60%)
23M23.00 mi1.25 mi9027+851581+121581+128068(Top 30%)1612(Top 14%)1612(Top 33%)
24M24.00 mi1.00 mi8968+591582-11582-18070(Top 30%)1703(Top 15%)1703(Top 35%)
40K24.85 mi0.85 mi8895+731579+31579+37591(Top 29%)1598(Top 14%)1598(Top 33%)
25.2M25.20 mi0.35 mi8865+301573+61573+68434(Top 32%)1985(Top 17%)1985(Top 41%)
Finish26.22 mi1.02 mi8746+1191548+251548+256649(Top 25%)1300(Top 11%)1300(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9959

Females

1819

F18-39

1819

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10132

Females

1880

F18-39

1880

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9959

Females

1819

F18-39

1819

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9358

Females

1625

F18-39

1625

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9300

Females

1592

F18-39

1592

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9040

Females

1568

F18-39

1568

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

8673

Females

1582

F18-39

1582

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8386

Females

1550

F18-39

1550

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6390

Females

923

F18-39

923

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

11045

Females

2917

F18-39

2917

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8068

Females

1612

F18-39

1612

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8070

Females

1703

F18-39

1703

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7591

Females

1598

F18-39

1598

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8434

Females

1985

F18-39

1985

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6649

Females

1300

F18-39

1300

Passing Analysis

Category:
Athletes Passed
2019*
Passed By
996
Net Change
+1023
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9769
5K → 10K252380-128#9769#9897
10K → 15K188168+20#9897#9877
15K → 20K240*74+166#9877#9711
20K → Half3911+28#9711#9683
Half → 25K18456+128#9683#9555
25K → 30K268*77+191#9555#9364
30K → 20M12327+96#9364#9268
20M → 21M2204+216#9268#9052
21M → 35K2888-60#9052#9112
35K → 23M11833+85#9112#9027
23M → 24M9839+59#9027#8968
24M → 40K9219+73#8968#8895
40K → 25.2M4111+30#8895#8865
25.2M → Finish1289+119#8865#8746
TOTALS2019*996+1023

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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