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BOSTON MARATHON 2023

Marisa Saia

Bib: 14738•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 17%
Division (F18-39)
#0 / 4884
Top 31%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:40
Rank: #10713
Start → 5K
23:40 | 7:37/mi
10K· 6.21 mi
46:51
Rank: #10401 (+312)
5K → 10K
23:11 | 7:28/mi
15K· 9.32 mi
1:10:07
Rank: #10267 (+134)
10K → 15K
23:16 | 7:29/mi
20K· 12.43 mi
1:33:41
Rank: #10180 (+87)
15K → 20K
23:34 | 7:35/mi
Half· 13.11 mi
1:38:46
Rank: #10143 (+37)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:57:21
Rank: #10085 (+58)
Half → 25K
18:35 | 7:40/mi
30K· 18.64 mi
2:21:58
Rank: #10103 (-18)
25K → 30K
24:37 | 7:55/mi
20M
2:32:30
Rank: #9939 (+164)
30K → 20M
10:32 | 7:45/mi
21M
2:40:51
Rank: #9897 (+42)
20M → 21M
8:21 | 8:21/mi
35K· 21.75 mi
2:46:23
Rank: #9805 (+92)
21M → 35K
5:32 | 7:24/mi
23M
2:56:39
Rank: #9850 (-45)
35K → 23M
10:16 | 8:12/mi
24M
3:04:47
Rank: #9935 (-85)
23M → 24M
8:08 | 8:08/mi
40K· 24.85 mi
3:11:32
Rank: #9886 (+49)
24M → 40K
6:45 | 7:54/mi
25.2M
3:14:27
Rank: #9862 (+24)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:21:58
Rank: #9716 (+146)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:46
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:43:12
Pace7:52 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4423:407:3723:40
7:37
-
10K
6.21 mi11:15:5546:517:3223:11
7:28
-0:09
15K
9.32 mi11:39:111:10:077:3123:16
7:29
+0:01
20K
12.43 mi12:02:451:33:417:3223:34
7:35
+0:06
Half
13.11 mi12:07:501:38:467:325:05
7:27
-0:08
25K
15.53 mi12:26:251:57:217:3318:35
7:40
+0:13
30K
18.64 mi12:51:022:21:587:3724:37
7:55
+0:15
20M
20.00 mi13:01:342:32:307:3710:32
7:45
-0:10
21M
21.00 mi13:09:552:40:517:408:21
8:21
+0:36
35K
21.75 mi13:15:272:46:237:395:32
7:24
-0:57
23M
23.00 mi13:25:432:56:397:4110:16
8:12
+0:48
24M
24.00 mi13:33:513:04:477:428:08
8:08
-0:04
40K
24.85 mi13:40:363:11:327:426:45
7:54
-0:14
25.2M
25.20 mi13:43:313:14:277:432:55
8:27
+0:33
Finish
26.22 mi13:51:023:21:587:437:31
7:23
-1:04

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

7:23 /mi

Average Pace

7:43 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:18

85% of race

Time at Steady Pace

29:40

15% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:42 /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 mi10:52:4423:407:3723:40
7:37
#10713
10K
6.21 mi11:15:5546:517:3223:11
7:28
#10401
15K
9.32 mi11:39:111:10:077:3123:16
7:29
#10267
20K
12.43 mi12:02:451:33:417:3223:34
7:35
#10180
Half
13.11 mi12:07:501:38:467:325:05
7:27
#10143
25K
15.53 mi12:26:251:57:217:3318:35
7:40
#10085
30K
18.64 mi12:51:022:21:587:3724:37
7:55
#10103
20M
20.00 mi13:01:342:32:307:3710:32
7:45
#9939
21M
21.00 mi13:09:552:40:517:408:21
8:21
#9897
35K
21.75 mi13:15:272:46:237:395:32
7:24
#9805
23M
23.00 mi13:25:432:56:397:4110:16
8:12
#9850
24M
24.00 mi13:33:513:04:477:428:08
8:08
#9935
40K
24.85 mi13:40:363:11:327:426:45
7:54
#9886
25.2M
25.20 mi13:43:313:14:277:432:55
8:27
#9862
Finish
26.22 mi13:51:023:21:587:437:31
7:23
#9716
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi107132190219010110(Top 38%)1897(Top 17%)1897(Top 39%)
10K6.21 mi3.10 mi10401+3122030+1602030+16010182(Top 38%)1909(Top 17%)1909(Top 39%)
15K9.32 mi3.11 mi10267+1341944+861944+8610110(Top 38%)1897(Top 17%)1897(Top 39%)
20K12.43 mi3.11 mi10180+871917+271917+2710000(Top 38%)1918(Top 17%)1918(Top 39%)
Half13.11 mi0.68 mi10143+371908+91908+99922(Top 37%)1872(Top 16%)1872(Top 38%)
25K15.53 mi2.42 mi10085+581897+111897+1110051(Top 38%)2027(Top 18%)2027(Top 42%)
30K18.64 mi3.11 mi10103-181940-431940-4310338(Top 39%)2328(Top 20%)2328(Top 48%)
20M20.00 mi1.36 mi9939+1641891+491891+498545(Top 32%)1623(Top 14%)1623(Top 33%)
21M21.00 mi1.00 mi9897+421900-91900-99584(Top 36%)2196(Top 19%)2196(Top 45%)
35K21.75 mi0.75 mi9805+921875+251875+257851(Top 29%)1457(Top 13%)1457(Top 30%)
23M23.00 mi1.25 mi9850-451927-521927-5211222(Top 42%)3134(Top 27%)3134(Top 64%)
24M24.00 mi1.00 mi9935-852001-742001-7412198(Top 46%)3709(Top 32%)3709(Top 76%)
40K24.85 mi0.85 mi9886+492010-92010-99383(Top 35%)2361(Top 21%)2361(Top 48%)
25.2M25.20 mi0.35 mi9862+242009+12009+19407(Top 35%)2462(Top 22%)2462(Top 50%)
Finish26.22 mi1.02 mi9716+1461973+361973+367676(Top 29%)1705(Top 15%)1705(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10110

Females

1897

F18-39

1897

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10182

Females

1909

F18-39

1909

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10110

Females

1897

F18-39

1897

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10000

Females

1918

F18-39

1918

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9922

Females

1872

F18-39

1872

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10051

Females

2027

F18-39

2027

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10338

Females

2328

F18-39

2328

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8545

Females

1623

F18-39

1623

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

9584

Females

2196

F18-39

2196

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

7851

Females

1457

F18-39

1457

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11222

Females

3134

F18-39

3134

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12198

Females

3709

F18-39

3709

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9383

Females

2361

F18-39

2361

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9407

Females

2462

F18-39

2462

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7676

Females

1705

F18-39

1705

Passing Analysis

Category:
Athletes Passed
2091*
Passed By
1092
Net Change
+997
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10713
5K → 10K480*168+312#10713#10401
10K → 15K258124+134#10401#10267
15K → 20K197*110+87#10267#10180
20K → Half5720+37#10180#10143
Half → 25K15193+58#10143#10085
25K → 30K153*171-18#10085#10103
30K → 20M187*23+164#10103#9939
20M → 21M10461+42#9939#9897
21M → 35K997+92#9897#9805
35K → 23M70115-45#9805#9850
23M → 24M47131-85#9850#9935
24M → 40K9142+49#9935#9886
40K → 25.2M3814+24#9886#9862
25.2M → Finish159*13+146#9862#9716
TOTALS2091*1092+997

* 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