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BOSTON MARATHON 2023

Sarah Laico

Bib: 12693•F

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:43
Rank: #8193
Start → 5K
22:43 | 7:19/mi
10K· 6.21 mi
45:19
Rank: #8406 (-213)
5K → 10K
22:36 | 7:16/mi
15K· 9.32 mi
1:08:24
Rank: #8766 (-360)
10K → 15K
23:05 | 7:26/mi
20K· 12.43 mi
1:32:15
Rank: #9179 (-413)
15K → 20K
23:51 | 7:41/mi
Half· 13.11 mi
1:37:28
Rank: #9307 (-128)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
1:56:42
Rank: #9762 (-455)
Half → 25K
19:14 | 7:56/mi
30K· 18.64 mi
2:21:26
Rank: #9885 (-123)
25K → 30K
24:44 | 7:58/mi
20M
2:32:16
Rank: #9838 (+47)
30K → 20M
10:50 | 7:58/mi
21M
2:40:33
Rank: #9774 (+64)
20M → 21M
8:17 | 8:17/mi
35K· 21.75 mi
2:46:17
Rank: #9759 (+15)
21M → 35K
5:44 | 7:40/mi
23M
2:56:22
Rank: #9758 (+1)
35K → 23M
10:05 | 8:03/mi
24M
3:04:10
Rank: #9720 (+38)
23M → 24M
7:48 | 7:48/mi
40K· 24.85 mi
3:10:51
Rank: #9659 (+61)
24M → 40K
6:41 | 7:49/mi
25.2M
3:13:40
Rank: #9601 (+58)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
3:21:06
Rank: #9477 (+124)
25.2M → Finish
7:26 | 7:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:28
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:43:38
Pace7:54 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5922:437:1922:43
7:19
-
10K
6.21 mi11:12:3545:197:1822:36
7:16
-0:03
15K
9.32 mi11:35:401:08:247:2023:05
7:26
+0:10
20K
12.43 mi11:59:311:32:157:2523:51
7:41
+0:15
Half
13.11 mi12:04:441:37:287:265:13
7:39
-0:02
25K
15.53 mi12:23:581:56:427:3119:14
7:56
+0:17
30K
18.64 mi12:48:422:21:267:3524:44
7:58
+0:02
20M
20.00 mi12:59:322:32:167:3710:50
7:58
0:00
21M
21.00 mi13:07:492:40:337:398:17
8:17
+0:19
35K
21.75 mi13:13:332:46:177:395:44
7:40
-0:37
23M
23.00 mi13:23:382:56:227:4010:05
8:03
+0:23
24M
24.00 mi13:31:263:04:107:407:48
7:48
-0:15
40K
24.85 mi13:38:073:10:517:416:41
7:49
+0:01
25.2M
25.20 mi13:40:563:13:407:412:49
8:10
+0:21
Finish
26.22 mi13:48:223:21:067:417:26
7:18
-0:52

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

7:16 /mi

Average Pace

7:41 /mi

Slowest Pace

8:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:55

89% of race

Time at Steady Pace

21:11

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:40 /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 mi10:49:5922:437:1922:43
7:19
#8193
10K
6.21 mi11:12:3545:197:1822:36
7:16
#8406
15K
9.32 mi11:35:401:08:247:2023:05
7:26
#8766
20K
12.43 mi11:59:311:32:157:2523:51
7:41
#9179
Half
13.11 mi12:04:441:37:287:265:13
7:39
#9307
25K
15.53 mi12:23:581:56:427:3119:14
7:56
#9762
30K
18.64 mi12:48:422:21:267:3524:44
7:58
#9885
20M
20.00 mi12:59:322:32:167:3710:50
7:58
#9838
21M
21.00 mi13:07:492:40:337:398:17
8:17
#9774
35K
21.75 mi13:13:332:46:177:395:44
7:40
#9759
23M
23.00 mi13:23:382:56:227:4010:05
8:03
#9758
24M
24.00 mi13:31:263:04:107:407:48
7:48
#9720
40K
24.85 mi13:38:073:10:517:416:41
7:49
#9659
25.2M
25.20 mi13:40:563:13:407:412:49
8:10
#9601
Finish
26.22 mi13:48:223:21:067:417:26
7:18
#9477
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8193108110819615(Top 36%)1671(Top 15%)1671(Top 34%)
10K6.21 mi3.10 mi8406-2131182-1011182-1018683(Top 33%)1301(Top 11%)1301(Top 27%)
15K9.32 mi3.11 mi8766-3601338-1561338-1569615(Top 36%)1671(Top 15%)1671(Top 34%)
20K12.43 mi3.11 mi9179-4131504-1661504-16610730(Top 40%)2267(Top 20%)2267(Top 46%)
Half13.11 mi0.68 mi9307-1281563-591563-5911420(Top 43%)2561(Top 22%)2561(Top 52%)
25K15.53 mi2.42 mi9762-4551746-1831746-18312161(Top 46%)3163(Top 28%)3163(Top 65%)
30K18.64 mi3.11 mi9885-1231840-941840-9410580(Top 40%)2432(Top 21%)2432(Top 50%)
20M20.00 mi1.36 mi9838+471846-61846-610078(Top 38%)2260(Top 20%)2260(Top 46%)
21M21.00 mi1.00 mi9774+641840+61840+69159(Top 34%)1991(Top 17%)1991(Top 41%)
35K21.75 mi0.75 mi9759+151851-111851-119728(Top 37%)2232(Top 20%)2232(Top 46%)
23M23.00 mi1.25 mi9758+11891-401891-4010135(Top 38%)2562(Top 22%)2562(Top 52%)
24M24.00 mi1.00 mi9720+381898-71898-79811(Top 37%)2496(Top 22%)2496(Top 51%)
40K24.85 mi0.85 mi9659+611888+101888+108811(Top 33%)2088(Top 18%)2088(Top 43%)
25.2M25.20 mi0.35 mi9601+581886+21886+27577(Top 28%)1647(Top 14%)1647(Top 34%)
Finish26.22 mi1.02 mi9477+1241858+281858+287132(Top 27%)1479(Top 13%)1479(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9615

Females

1671

F18-39

1671

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

8683

Females

1301

F18-39

1301

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9615

Females

1671

F18-39

1671

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10730

Females

2267

F18-39

2267

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11420

Females

2561

F18-39

2561

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

12161

Females

3163

F18-39

3163

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

10580

Females

2432

F18-39

2432

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10078

Females

2260

F18-39

2260

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9159

Females

1991

F18-39

1991

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9728

Females

2232

F18-39

2232

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10135

Females

2562

F18-39

2562

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9811

Females

2496

F18-39

2496

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8811

Females

2088

F18-39

2088

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7577

Females

1647

F18-39

1647

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7132

Females

1479

F18-39

1479

Passing Analysis

Category:
Athletes Passed
1129*
Passed By
2413
Net Change
-1284
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8193
5K → 10K134347-213#8193#8406
10K → 15K52412-360#8406#8766
15K → 20K38451-413#8766#9179
20K → Half2130-128#9179#9307
Half → 25K38493-455#9307#9762
25K → 30K117*240-123#9762#9885
30K → 20M10962+47#9885#9838
20M → 21M11248+64#9838#9774
21M → 35K4833+15#9774#9759
35K → 23M9796+1#9759#9758
23M → 24M8042+38#9758#9720
24M → 40K92*31+61#9720#9659
40K → 25.2M7113+58#9659#9601
25.2M → Finish13915+124#9601#9477
TOTALS1129*2413-1284

* 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