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BOSTON MARATHON 2023

Sierra Wells

Bib: 15654•F

MO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 29%
Gender (Female)
#0 / 11423
Top 10%
Division (F18-39)
#0 / 4884
Top 18%
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
7:31/mi
23:21
↑ 97↓ 3451.5%
10K· 6.21 mi
7:22/mi
46:15
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:09:08
↑ 67↓ 78
20K· 12.43 mi
7:16/mi
1:31:43
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:36:40
↑ 19↓ 370.5%
25K· 15.53 mi
7:21/mi
1:54:30
↑ 66↓ 880.2%
30K· 18.64 mi
7:25/mi
2:17:33
↑ 181↓ 1480.2%
20M
7:24/mi
2:27:36
↑ 64↓ 500.2%
21M
7:52/mi
2:35:28
↑ 106↓ 241.6%
35K· 21.75 mi
7:09/mi
2:40:49
↑ 17↓ 861.7%
23M
7:17/mi
2:49:56
↑ 23↓ 630.6%
24M
7:04/mi
2:57:00
↓ 821.3%
40K· 24.85 mi
7:30/mi
3:03:25
↓ 200.3%
25.2M
8:33/mi
3:06:22
↑ 13↓ 160.2%
Finish· 26.22 mi
8:01/mi
3:14:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:40
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:37:52
Pace7:28 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:3823:217:3123:21
7:31
-
10K
6.21 mi11:17:3246:157:2722:54
7:22
-0:09
15K
9.32 mi11:40:251:09:087:2522:54
7:22
0:00
20K
12.43 mi12:03:001:31:437:2322:35
7:16
-0:06
Half
13.11 mi12:07:571:36:407:224:57
7:15
-0:01
25K
15.53 mi12:25:471:54:307:2217:50
7:21
+0:06
30K
18.64 mi12:48:502:17:337:2323:03
7:25
+0:04
20M
20.00 mi12:58:532:27:367:2310:03
7:24
-0:01
21M
21.00 mi13:06:452:35:287:247:52
7:52
+0:28
35K
21.75 mi13:12:062:40:497:245:21
7:09
-0:43
23M
23.00 mi13:21:132:49:567:239:07
7:17
+0:08
24M
24.00 mi13:28:172:57:007:237:04
7:04
-0:13
40K
24.85 mi13:34:423:03:257:236:25
7:30
+0:26
25.2M
25.20 mi13:37:393:06:227:242:57
8:33
+1:03
Finish
26.22 mi13:45:493:14:327:258:10
8:01
-0:32

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

7:04 /mi

Average Pace

7:25 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

12:25

6% of race

Time at Steady Pace

2:43:08

84% of race

Time at Slower Pace

18:59

10% of race

Average Pace: 7:25 /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 mi10:54:3823:217:3123:21
7:31
#9764
10K
6.21 mi11:17:3246:157:2722:54
7:22
#9516
15K
9.32 mi11:40:251:09:087:2522:54
7:22
#9333
20K
12.43 mi12:03:001:31:437:2322:35
7:16
#8849
Half
13.11 mi12:07:571:36:407:224:57
7:15
#8810
25K
15.53 mi12:25:471:54:307:2217:50
7:21
#8603
30K
18.64 mi12:48:502:17:337:2323:03
7:25
#8211
20M
20.00 mi12:58:532:27:367:2310:03
7:24
#8022
21M
21.00 mi13:06:452:35:287:247:52
7:52
#7892
35K
21.75 mi13:12:062:40:497:245:21
7:09
#7812
23M
23.00 mi13:21:132:49:567:239:07
7:17
#7607
24M
24.00 mi13:28:172:57:007:237:04
7:04
#7450
40K
24.85 mi13:34:423:03:257:236:25
7:30
#7398
25.2M
25.20 mi13:37:393:06:227:242:57
8:33
#7437
Finish
26.22 mi13:45:493:14:327:258:10
8:01
#7602
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9764173617369079(Top 34%)1484(Top 13%)1484(Top 30%)
10K6.21 mi3.10 mi9516+2481623+1131623+1139371(Top 35%)1577(Top 14%)1577(Top 32%)
15K9.32 mi3.11 mi9333+1831554+691554+699079(Top 34%)1484(Top 13%)1484(Top 30%)
20K12.43 mi3.11 mi8849+4841373+1811373+1817571(Top 28%)952(Top 8%)952(Top 19%)
Half13.11 mi0.68 mi8810+391363+101363+108301(Top 31%)1206(Top 11%)1206(Top 25%)
25K15.53 mi2.42 mi8603+2071294+691294+697673(Top 29%)1077(Top 9%)1077(Top 22%)
30K18.64 mi3.11 mi8211+3921197+971197+976728(Top 25%)843(Top 7%)843(Top 17%)
20M20.00 mi1.36 mi8022+1891140+571140+576186(Top 23%)753(Top 7%)753(Top 15%)
21M21.00 mi1.00 mi7892+1301103+371103+376573(Top 25%)970(Top 8%)970(Top 20%)
35K21.75 mi0.75 mi7812+801085+181085+186270(Top 24%)851(Top 7%)851(Top 17%)
23M23.00 mi1.25 mi7607+2051035+501035+505246(Top 20%)605(Top 5%)605(Top 12%)
24M24.00 mi1.00 mi7450+1571010+251010+255053(Top 19%)591(Top 5%)591(Top 12%)
40K24.85 mi0.85 mi7398+521019-91019-96785(Top 25%)1270(Top 11%)1270(Top 26%)
25.2M25.20 mi0.35 mi7437-391044-251044-259892(Top 37%)2608(Top 23%)2608(Top 53%)
Finish26.22 mi1.02 mi7602-1651112-681112-6812228(Top 46%)3812(Top 33%)3812(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9079

Females

1484

F18-39

1484

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9371

Females

1577

F18-39

1577

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9079

Females

1484

F18-39

1484

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7571

Females

952

F18-39

952

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8301

Females

1206

F18-39

1206

Half→25K

13.1 - 15.5 mi

Top 29%
×4story building
+66ft-88ft

Overall

7673

Females

1077

F18-39

1077

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6728

Females

843

F18-39

843

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6186

Females

753

F18-39

753

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6573

Females

970

F18-39

970

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6270

Females

851

F18-39

851

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5246

Females

605

F18-39

605

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5053

Females

591

F18-39

591

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6785

Females

1270

F18-39

1270

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9892

Females

2608

F18-39

2608

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12228

Females

3812

F18-39

3812

Passing Analysis

Category:
Athletes Passed
2787
Passed By
625
Net Change
+2162
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9764
5K → 10K439191+248#9764#9516
10K → 15K25875+183#9516#9333
15K → 20K4895+484#9333#8849
20K → Half467+39#8849#8810
Half → 25K22417+207#8810#8603
25K → 30K40311+392#8603#8211
30K → 20M20112+189#8211#8022
20M → 21M14515+130#8022#7892
21M → 35K866+80#7892#7812
35K → 23M2138+205#7812#7607
23M → 24M1636+157#7607#7450
24M → 40K7927+52#7450#7398
40K → 25.2M1251-39#7398#7437
25.2M → Finish29194-165#7437#7602
TOTALS2787625+2162
📊

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