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BOSTON MARATHON 2023

Sara Shonkwiler

Bib: 9941•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 37%
Gender (Female)
#0 / 11423
Top 18%
Division (F18-39)
#0 / 4884
Top 32%
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
7:12/mi
22:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:08/mi
44:32
↑ 79↓ 1380.4%
15K· 9.32 mi
7:08/mi
1:06:42
↑ 67↓ 78
20K· 12.43 mi
7:18/mi
1:29:24
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:34:22
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
1:53:01
↑ 66↓ 880.2%
30K· 18.64 mi
8:17/mi
2:18:45
↑ 181↓ 1480.2%
20M
8:28/mi
2:30:15
↑ 64↓ 500.2%
21M
8:47/mi
2:39:02
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:45:00
↑ 17↓ 861.7%
23M
8:17/mi
2:55:22
↑ 23↓ 630.6%
24M
8:21/mi
3:03:43
↓ 821.3%
40K· 24.85 mi
8:35/mi
3:11:03
↓ 200.3%
25.2M
9:49/mi
3:14:26
↑ 13↓ 160.2%
Finish· 26.22 mi
7:55/mi
3:22:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:22
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:48:08
Pace8:15 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1222:237:1222:23
7:12
-
10K
6.21 mi11:10:2144:327:1022:09
7:08
-0:04
15K
9.32 mi11:32:311:06:427:0922:10
7:08
0:00
20K
12.43 mi11:55:131:29:247:1222:42
7:18
+0:10
Half
13.11 mi12:00:111:34:227:124:58
7:17
-0:01
25K
15.53 mi12:18:501:53:017:1718:39
7:42
+0:25
30K
18.64 mi12:44:342:18:457:2725:44
8:17
+0:35
20M
20.00 mi12:56:042:30:157:3111:30
8:28
+0:11
21M
21.00 mi13:04:512:39:027:348:47
8:47
+0:19
35K
21.75 mi13:10:492:45:007:355:58
7:59
-0:48
23M
23.00 mi13:21:112:55:227:3710:22
8:17
+0:18
24M
24.00 mi13:29:323:03:437:398:21
8:21
+0:04
40K
24.85 mi13:36:523:11:037:417:20
8:35
+0:14
25.2M
25.20 mi13:40:153:14:267:433:23
9:49
+1:14
Finish
26.22 mi13:48:193:22:307:448:04
7:55
-1:54

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

7:08 /mi

Average Pace

7:44 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:22

47% of race

Time at Steady Pace

1:08:47

34% of race

Time at Slower Pace

39:21

19% of race

Average Pace: 7:43 /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 mi10:48:1222:237:1222:23
7:12
#7544
10K
6.21 mi11:10:2144:327:1022:09
7:08
#7557
15K
9.32 mi11:32:311:06:427:0922:10
7:08
#7465
20K
12.43 mi11:55:131:29:247:1222:42
7:18
#7504
Half
13.11 mi12:00:111:34:227:124:58
7:17
#7535
25K
15.53 mi12:18:501:53:017:1718:39
7:42
#7903
30K
18.64 mi12:44:342:18:457:2725:44
8:17
#8707
20M
20.00 mi12:56:042:30:157:3111:30
8:28
#9046
21M
21.00 mi13:04:512:39:027:348:47
8:47
#9210
35K
21.75 mi13:10:492:45:007:355:58
7:59
#9301
23M
23.00 mi13:21:112:55:227:3710:22
8:17
#9411
24M
24.00 mi13:29:323:03:437:398:21
8:21
#9590
40K
24.85 mi13:36:523:11:037:417:20
8:35
#9733
25.2M
25.20 mi13:40:153:14:267:433:23
9:49
#9854
Finish
26.22 mi13:48:193:22:307:448:04
7:55
#9884
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi75448578577386(Top 28%)859(Top 8%)859(Top 18%)
10K6.21 mi3.10 mi7557-13874-17874-177636(Top 29%)937(Top 8%)937(Top 19%)
15K9.32 mi3.11 mi7465+92859+15859+157386(Top 28%)859(Top 8%)859(Top 18%)
20K12.43 mi3.11 mi7504-39880-21880-217845(Top 29%)1058(Top 9%)1058(Top 22%)
Half13.11 mi0.68 mi7535-31897-17897-178537(Top 32%)1316(Top 12%)1316(Top 27%)
25K15.53 mi2.42 mi7903-3681042-1451042-14510246(Top 38%)2109(Top 18%)2109(Top 43%)
30K18.64 mi3.11 mi8707-8041374-3321374-33212916(Top 49%)3700(Top 32%)3700(Top 76%)
20M20.00 mi1.36 mi9046-3391527-1531527-15313411(Top 50%)4071(Top 36%)4071(Top 83%)
21M21.00 mi1.00 mi9210-1641620-931620-9312161(Top 46%)3482(Top 30%)3482(Top 71%)
35K21.75 mi0.75 mi9301-911673-531673-5311939(Top 45%)3375(Top 30%)3375(Top 69%)
23M23.00 mi1.25 mi9411-1101733-601733-6011751(Top 44%)3373(Top 30%)3373(Top 69%)
24M24.00 mi1.00 mi9590-1791838-1051838-10513538(Top 51%)4407(Top 39%)4407(Top 90%)
40K24.85 mi0.85 mi9733-1431931-931931-9313819(Top 52%)4632(Top 41%)4632(Top 95%)
25.2M25.20 mi0.35 mi9854-1212005-742005-7416580(Top 62%)6169(Top 54%)6169(Top 126%)
Finish26.22 mi1.02 mi9884-302041-362041-3611517(Top 43%)3447(Top 30%)3447(Top 71%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7386

Females

859

F18-39

859

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

7636

Females

937

F18-39

937

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7386

Females

859

F18-39

859

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

7845

Females

1058

F18-39

1058

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8537

Females

1316

F18-39

1316

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10246

Females

2109

F18-39

2109

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

12916

Females

3700

F18-39

3700

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

13411

Females

4071

F18-39

4071

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

12161

Females

3482

F18-39

3482

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

11939

Females

3375

F18-39

3375

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11751

Females

3373

F18-39

3373

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13538

Females

4407

F18-39

4407

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13819

Females

4632

F18-39

4632

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16580

Females

6169

F18-39

6169

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

11517

Females

3447

F18-39

3447

Passing Analysis

Category:
Athletes Passed
835*
Passed By
3175
Net Change
-2340
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7544
5K → 10K222235-13#7544#7557
10K → 15K17785+92#7557#7465
15K → 20K109148-39#7465#7504
20K → Half1041-31#7504#7535
Half → 25K22390-368#7535#7903
25K → 30K30834-804#7903#8707
30K → 20M21360-339#8707#9046
20M → 21M37201-164#9046#9210
21M → 35K24115-91#9210#9301
35K → 23M53163-110#9301#9411
23M → 24M25204-179#9411#9590
24M → 40K25*168-143#9590#9733
40K → 25.2M14135-121#9733#9854
25.2M → Finish66*96-30#9854#9884
TOTALS835*3175-2340

* 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