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BOSTON MARATHON 2023

Sarah Vaira

Bib: 17329•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 35%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 28%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:37/mi
23:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
46:51
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:10:07
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:33:39
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:38:48
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:57:13
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:21:42
↑ 181↓ 1480.2%
20M
8:04/mi
2:32:40
↑ 64↓ 500.2%
21M
8:25/mi
2:41:05
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:46:43
↑ 17↓ 861.7%
23M
7:35/mi
2:56:13
↑ 23↓ 630.6%
24M
7:31/mi
3:03:44
↓ 821.3%
40K· 24.85 mi
7:29/mi
3:10:08
↓ 200.3%
25.2M
8:01/mi
3:12:54
↑ 13↓ 160.2%
Finish· 26.22 mi
7:24/mi
3:20:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:48
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:41:38
Pace7:45 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1623:417:3723:41
7:37
-
10K
6.21 mi11:37:2646:517:3223:10
7:27
-0:10
15K
9.32 mi12:00:421:10:077:3123:16
7:29
+0:02
20K
12.43 mi12:24:141:33:397:3223:32
7:34
+0:05
Half
13.11 mi12:29:231:38:487:325:09
7:33
-0:01
25K
15.53 mi12:47:481:57:137:3318:25
7:36
+0:03
30K
18.64 mi13:12:172:21:427:3624:29
7:53
+0:17
20M
20.00 mi13:23:152:32:407:3810:58
8:04
+0:11
21M
21.00 mi13:31:402:41:057:408:25
8:25
+0:21
35K
21.75 mi13:37:182:46:437:405:38
7:32
-0:53
23M
23.00 mi13:46:482:56:137:409:30
7:35
+0:03
24M
24.00 mi13:54:193:03:447:397:31
7:31
-0:04
40K
24.85 mi14:00:433:10:087:396:24
7:29
-0:02
25.2M
25.20 mi14:03:293:12:547:392:46
8:01
+0:32
Finish
26.22 mi14:11:013:20:267:397:32
7:24
-0:37

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

7:24 /mi

Average Pace

7:39 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:01

96% of race

Time at Steady Pace

8:25

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi11:14:1623:417:3723:41
7:37
#10751
10K
6.21 mi11:37:2646:517:3223:10
7:27
#10395
15K
9.32 mi12:00:421:10:077:3123:16
7:29
#10265
20K
12.43 mi12:24:141:33:397:3223:32
7:34
#10156
Half
13.11 mi12:29:231:38:487:325:09
7:33
#10167
25K
15.53 mi12:47:481:57:137:3318:25
7:36
#10014
30K
18.64 mi13:12:172:21:427:3624:29
7:53
#9982
20M
20.00 mi13:23:152:32:407:3810:58
8:04
#10010
21M
21.00 mi13:31:402:41:057:408:25
8:25
#9987
35K
21.75 mi13:37:182:46:437:405:38
7:32
#9922
23M
23.00 mi13:46:482:56:137:409:30
7:35
#9704
24M
24.00 mi13:54:193:03:447:397:31
7:31
#9593
40K
24.85 mi14:00:433:10:087:396:24
7:29
#9446
25.2M
25.20 mi14:03:293:12:547:392:46
8:01
#9385
Finish
26.22 mi14:11:013:20:267:397:32
7:24
#9317
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi107512199219910100(Top 38%)1887(Top 17%)1887(Top 39%)
10K6.21 mi3.10 mi10395+3562024+1752024+17510135(Top 38%)1883(Top 16%)1883(Top 39%)
15K9.32 mi3.11 mi10265+1301942+821942+8210100(Top 38%)1887(Top 17%)1887(Top 39%)
20K12.43 mi3.11 mi10156+1091904+381904+389916(Top 37%)1875(Top 16%)1875(Top 38%)
Half13.11 mi0.68 mi10167-111918-141918-1410643(Top 40%)2181(Top 19%)2181(Top 45%)
25K15.53 mi2.42 mi10014+1531866+521866+529522(Top 36%)1789(Top 16%)1789(Top 37%)
30K18.64 mi3.11 mi9982+321886-201886-209985(Top 38%)2152(Top 19%)2152(Top 44%)
20M20.00 mi1.36 mi10010-281925-391925-3910805(Top 41%)2633(Top 23%)2633(Top 54%)
21M21.00 mi1.00 mi9987+231943-181943-189974(Top 37%)2366(Top 21%)2366(Top 48%)
35K21.75 mi0.75 mi9922+651925+181925+188778(Top 33%)1811(Top 16%)1811(Top 37%)
23M23.00 mi1.25 mi9704+2181861+641861+647034(Top 26%)1195(Top 10%)1195(Top 24%)
24M24.00 mi1.00 mi9593+1111839+221839+227849(Top 29%)1624(Top 14%)1624(Top 33%)
40K24.85 mi0.85 mi9446+1471809+301809+306681(Top 25%)1247(Top 11%)1247(Top 26%)
25.2M25.20 mi0.35 mi9385+611795+141795+146746(Top 25%)1332(Top 12%)1332(Top 27%)
Finish26.22 mi1.02 mi9317+681786+91786+97771(Top 29%)1731(Top 15%)1731(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10100

Females

1887

F18-39

1887

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10135

Females

1883

F18-39

1883

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10100

Females

1887

F18-39

1887

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

9916

Females

1875

F18-39

1875

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10643

Females

2181

F18-39

2181

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9522

Females

1789

F18-39

1789

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

9985

Females

2152

F18-39

2152

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10805

Females

2633

F18-39

2633

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

9974

Females

2366

F18-39

2366

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8778

Females

1811

F18-39

1811

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7034

Females

1195

F18-39

1195

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7849

Females

1624

F18-39

1624

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6681

Females

1247

F18-39

1247

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6746

Females

1332

F18-39

1332

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7771

Females

1731

F18-39

1731

Passing Analysis

Category:
Athletes Passed
2285*
Passed By
850
Net Change
+1434
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10751
5K → 10K506*150+356#10751#10395
10K → 15K255125+130#10395#10265
15K → 20K211*102+109#10265#10156
20K → Half2839-11#10156#10167
Half → 25K20552+153#10167#10014
25K → 30K169*137+32#10014#9982
30K → 20M80107-28#9982#10010
20M → 21M10077+23#10010#9987
21M → 35K7510+65#9987#9922
35K → 23M2279+218#9922#9704
23M → 24M12615+111#9704#9593
24M → 40K149*2+147#9593#9446
40K → 25.2M621+61#9446#9385
25.2M → Finish9224+68#9385#9317
TOTALS2285*850+1434

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

📊

Passing Visuals

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