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BOSTON MARATHON 2023

Sara Smutz

Bib: 15397•F

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:52
Rank: #11303
Start → 5K
23:52 | 7:41/mi
10K· 6.21 mi
47:13
Rank: #10918 (+385)
5K → 10K
23:21 | 7:31/mi
15K· 9.32 mi
1:10:53
Rank: #10969 (-51)
10K → 15K
23:40 | 7:37/mi
20K· 12.43 mi
1:35:22
Rank: #11301 (-332)
15K → 20K
24:29 | 7:53/mi
Half· 13.11 mi
1:40:34
Rank: #11290 (+11)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:59:07
Rank: #11042 (+248)
Half → 25K
18:33 | 7:39/mi
30K· 18.64 mi
2:23:19
Rank: #10664 (+378)
25K → 30K
24:12 | 7:47/mi
20M
2:33:53
Rank: #10512 (+152)
30K → 20M
10:34 | 7:47/mi
21M
2:42:01
Rank: #10350 (+162)
20M → 21M
8:08 | 8:08/mi
35K· 21.75 mi
2:47:48
Rank: #10323 (+27)
21M → 35K
5:47 | 7:44/mi
23M
2:59:02
Rank: #10663 (-340)
35K → 23M
11:14 | 8:58/mi
24M
3:06:58
Rank: #10672 (-9)
23M → 24M
7:56 | 7:56/mi
40K· 24.85 mi
3:13:44
Rank: #10587 (+85)
24M → 40K
6:46 | 7:55/mi
25.2M
3:16:41
Rank: #10559 (+28)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:24:04
Rank: #10377 (+182)
25.2M → Finish
7:23 | 7:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:34
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:43:30
Pace7:54 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:4323:527:4123:52
7:41
-
10K
6.21 mi11:18:0447:137:3623:21
7:31
-0:10
15K
9.32 mi11:41:441:10:537:3623:40
7:37
+0:06
20K
12.43 mi12:06:131:35:227:4024:29
7:53
+0:16
Half
13.11 mi12:11:251:40:347:405:12
7:37
-0:16
25K
15.53 mi12:29:581:59:077:4018:33
7:39
+0:02
30K
18.64 mi12:54:102:23:197:4124:12
7:47
+0:08
20M
20.00 mi13:04:442:33:537:4210:34
7:47
0:00
21M
21.00 mi13:12:522:42:017:438:08
8:08
+0:21
35K
21.75 mi13:18:392:47:487:435:47
7:44
-0:24
23M
23.00 mi13:29:532:59:027:4711:14
8:58
+1:14
24M
24.00 mi13:37:493:06:587:477:56
7:56
-1:02
40K
24.85 mi13:44:353:13:447:486:46
7:55
-0:01
25.2M
25.20 mi13:47:323:16:417:482:57
8:33
+0:38
Finish
26.22 mi13:54:553:24:047:477:23
7:15
-1:18

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

7:15 /mi

Average Pace

7:47 /mi

Slowest Pace

8:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:44

15% of race

Time at Steady Pace

2:31:01

74% of race

Time at Slower Pace

22:19

11% of race

Average Pace: 7:47 /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 mi10:54:4323:527:4123:52
7:41
#11303
10K
6.21 mi11:18:0447:137:3623:21
7:31
#10918
15K
9.32 mi11:41:441:10:537:3623:40
7:37
#10969
20K
12.43 mi12:06:131:35:227:4024:29
7:53
#11301
Half
13.11 mi12:11:251:40:347:405:12
7:37
#11290
25K
15.53 mi12:29:581:59:077:4018:33
7:39
#11042
30K
18.64 mi12:54:102:23:197:4124:12
7:47
#10664
20M
20.00 mi13:04:442:33:537:4210:34
7:47
#10512
21M
21.00 mi13:12:522:42:017:438:08
8:08
#10350
35K
21.75 mi13:18:392:47:487:435:47
7:44
#10323
23M
23.00 mi13:29:532:59:027:4711:14
8:58
#10663
24M
24.00 mi13:37:493:06:587:477:56
7:56
#10672
40K
24.85 mi13:44:353:13:447:486:46
7:55
#10587
25.2M
25.20 mi13:47:323:16:417:482:57
8:33
#10559
Finish
26.22 mi13:54:553:24:047:477:23
7:15
#10377
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi113032492249211182(Top 42%)2450(Top 21%)2450(Top 50%)
10K6.21 mi3.10 mi10918+3852283+2092283+20910581(Top 40%)2096(Top 18%)2096(Top 43%)
15K9.32 mi3.11 mi10969-512320-372320-3711182(Top 42%)2450(Top 21%)2450(Top 50%)
20K12.43 mi3.11 mi11301-3322504-1842504-18412447(Top 47%)3221(Top 28%)3221(Top 66%)
Half13.11 mi0.68 mi11290+112493+112493+1111254(Top 42%)2485(Top 22%)2485(Top 51%)
25K15.53 mi2.42 mi11042+2482377+1162377+1169933(Top 37%)1979(Top 17%)1979(Top 41%)
30K18.64 mi3.11 mi10664+3782237+1402237+1409298(Top 35%)1839(Top 16%)1839(Top 38%)
20M20.00 mi1.36 mi10512+1522178+592178+598725(Top 33%)1690(Top 15%)1690(Top 35%)
21M21.00 mi1.00 mi10350+1622123+552123+558239(Top 31%)1635(Top 14%)1635(Top 33%)
35K21.75 mi0.75 mi10323+272122+12122+110180(Top 38%)2449(Top 21%)2449(Top 50%)
23M23.00 mi1.25 mi10663-3402339-2172339-21715909(Top 60%)5679(Top 50%)5679(Top 116%)
24M24.00 mi1.00 mi10672-92361-222361-2210792(Top 41%)2971(Top 26%)2971(Top 61%)
40K24.85 mi0.85 mi10587+852359+22359+29477(Top 36%)2392(Top 21%)2392(Top 49%)
25.2M25.20 mi0.35 mi10559+282350+92350+99922(Top 37%)2638(Top 23%)2638(Top 54%)
Finish26.22 mi1.02 mi10377+1822285+652285+656766(Top 25%)1343(Top 12%)1343(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

11182

Females

2450

F18-39

2450

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10581

Females

2096

F18-39

2096

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

11182

Females

2450

F18-39

2450

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

12447

Females

3221

F18-39

3221

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11254

Females

2485

F18-39

2485

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

9933

Females

1979

F18-39

1979

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

9298

Females

1839

F18-39

1839

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8725

Females

1690

F18-39

1690

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8239

Females

1635

F18-39

1635

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10180

Females

2449

F18-39

2449

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15909

Females

5679

F18-39

5679

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

10792

Females

2971

F18-39

2971

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9477

Females

2392

F18-39

2392

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9922

Females

2638

F18-39

2638

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6766

Females

1343

F18-39

1343

Passing Analysis

Category:
Athletes Passed
2326*
Passed By
1400
Net Change
+926
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11303
5K → 10K542157+385#11303#10918
10K → 15K155206-51#10918#10969
15K → 20K71403-332#10969#11301
20K → Half3322+11#11301#11290
Half → 25K26921+248#11290#11042
25K → 30K41032+378#11042#10664
30K → 20M168*16+152#10664#10512
20M → 21M17917+162#10512#10350
21M → 35K6134+27#10350#10323
35K → 23M25365-340#10323#10663
23M → 24M6776-9#10663#10672
24M → 40K10823+85#10672#10587
40K → 25.2M4517+28#10587#10559
25.2M → Finish19311+182#10559#10377
TOTALS2326*1400+926

* 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