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BOSTON MARATHON 2023

Casey Peterson

Bib: 14169•F

MI

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 30%
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
7:48/mi
24:13
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:13
↑ 79↓ 1380.4%
15K· 9.32 mi
7:32/mi
1:11:36
↑ 67↓ 78
20K· 12.43 mi
7:30/mi
1:34:54
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:39:56
↑ 19↓ 370.5%
25K· 15.53 mi
7:23/mi
1:57:51
↑ 66↓ 880.2%
30K· 18.64 mi
7:32/mi
2:21:15
↑ 181↓ 1480.2%
20M
8:02/mi
2:32:10
↑ 64↓ 500.2%
21M
8:24/mi
2:40:34
↑ 106↓ 241.6%
35K· 21.75 mi
7:51/mi
2:46:26
↑ 17↓ 861.7%
23M
8:06/mi
2:56:34
↑ 23↓ 630.6%
24M
7:50/mi
3:04:24
↓ 821.3%
40K· 24.85 mi
7:54/mi
3:11:09
↓ 200.3%
25.2M
8:16/mi
3:14:00
↑ 13↓ 160.2%
Finish· 26.22 mi
7:18/mi
3:21:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:56
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:41:30
Pace7:45 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2924:137:4824:13
7:48
-
10K
6.21 mi11:17:2948:137:4624:00
7:43
-0:05
15K
9.32 mi11:40:521:11:367:4123:23
7:32
-0:11
20K
12.43 mi12:04:101:34:547:3823:18
7:30
-0:02
Half
13.11 mi12:09:121:39:567:375:02
7:23
-0:07
25K
15.53 mi12:27:071:57:517:3517:55
7:23
0:00
30K
18.64 mi12:50:312:21:157:3523:24
7:32
+0:09
20M
20.00 mi13:01:262:32:107:3610:55
8:02
+0:30
21M
21.00 mi13:09:502:40:347:398:24
8:24
+0:22
35K
21.75 mi13:15:422:46:267:395:52
7:51
-0:33
23M
23.00 mi13:25:502:56:347:4110:08
8:06
+0:15
24M
24.00 mi13:33:403:04:247:417:50
7:50
-0:16
40K
24.85 mi13:40:253:11:097:416:45
7:54
+0:04
25.2M
25.20 mi13:43:163:14:007:422:51
8:16
+0:22
Finish
26.22 mi13:50:423:21:267:417:26
7:18
-0:58

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

7:18 /mi

Average Pace

7:41 /mi

Slowest Pace

8:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:08

84% of race

Time at Steady Pace

32:18

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:41 /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 mi10:53:2924:137:4824:13
7:48
#12301
10K
6.21 mi11:17:2948:137:4624:00
7:43
#12356
15K
9.32 mi11:40:521:11:367:4123:23
7:32
#11628
20K
12.43 mi12:04:101:34:547:3823:18
7:30
#11006
Half
13.11 mi12:09:121:39:567:375:02
7:23
#10922
25K
15.53 mi12:27:071:57:517:3517:55
7:23
#10366
30K
18.64 mi12:50:312:21:157:3523:24
7:32
#9798
20M
20.00 mi13:01:262:32:107:3610:55
8:02
#9807
21M
21.00 mi13:09:502:40:347:398:24
8:24
#9780
35K
21.75 mi13:15:422:46:267:395:52
7:51
#9823
23M
23.00 mi13:25:502:56:347:4110:08
8:06
#9823
24M
24.00 mi13:33:403:04:247:417:50
7:50
#9804
40K
24.85 mi13:40:253:11:097:416:45
7:54
#9764
25.2M
25.20 mi13:43:163:14:007:422:51
8:16
#9709
Finish
26.22 mi13:50:423:21:267:417:26
7:18
#9571
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi123013039303910396(Top 39%)2023(Top 18%)2023(Top 41%)
10K6.21 mi3.10 mi12356-553073-343073-3412469(Top 47%)3125(Top 27%)3125(Top 64%)
15K9.32 mi3.11 mi11628+7282679+3942679+39410396(Top 39%)2023(Top 18%)2023(Top 41%)
20K12.43 mi3.11 mi11006+6222332+3472332+3479322(Top 35%)1614(Top 14%)1614(Top 33%)
Half13.11 mi0.68 mi10922+842300+322300+329323(Top 35%)1615(Top 14%)1615(Top 33%)
25K15.53 mi2.42 mi10366+5562026+2742026+2747964(Top 30%)1177(Top 10%)1177(Top 24%)
30K18.64 mi3.11 mi9798+5681802+2241802+2247456(Top 28%)1094(Top 10%)1094(Top 22%)
20M20.00 mi1.36 mi9807-91832-301832-3010522(Top 40%)2489(Top 22%)2489(Top 51%)
21M21.00 mi1.00 mi9780+271844-121844-129871(Top 37%)2317(Top 20%)2317(Top 47%)
35K21.75 mi0.75 mi9823-431884-401884-4010967(Top 41%)2844(Top 25%)2844(Top 58%)
23M23.00 mi1.25 mi98231917-331917-3310412(Top 39%)2706(Top 24%)2706(Top 55%)
24M24.00 mi1.00 mi9804+191938-211938-2110047(Top 38%)2616(Top 23%)2616(Top 54%)
40K24.85 mi0.85 mi9764+401952-141952-149331(Top 35%)2313(Top 20%)2313(Top 47%)
25.2M25.20 mi0.35 mi9709+551933+191933+198161(Top 31%)1888(Top 17%)1888(Top 39%)
Finish26.22 mi1.02 mi9571+1381900+331900+337134(Top 27%)1481(Top 13%)1481(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10396

Females

2023

F18-39

2023

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12469

Females

3125

F18-39

3125

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10396

Females

2023

F18-39

2023

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9322

Females

1614

F18-39

1614

20K→Half

12.4 - 13.1 mi

Top 35%
×2story building
+19ft-37ft

Overall

9323

Females

1615

F18-39

1615

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

7964

Females

1177

F18-39

1177

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7456

Females

1094

F18-39

1094

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10522

Females

2489

F18-39

2489

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

9871

Females

2317

F18-39

2317

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

10967

Females

2844

F18-39

2844

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10412

Females

2706

F18-39

2706

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10047

Females

2616

F18-39

2616

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9331

Females

2313

F18-39

2313

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8161

Females

1888

F18-39

1888

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7134

Females

1481

F18-39

1481

Passing Analysis

Category:
Athletes Passed
3550*
Passed By
820
Net Change
+2730
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12301
5K → 10K304359-55#12301#12356
10K → 15K74012+728#12356#11628
15K → 20K6297+622#11628#11006
20K → Half873+84#11006#10922
Half → 25K5560+556#10922#10366
25K → 30K574*6+568#10366#9798
30K → 20M8190-9#9798#9807
20M → 21M9164+27#9807#9780
21M → 35K3073-43#9780#9823
35K → 23M85850#9823#9823
23M → 24M7152+19#9823#9804
24M → 40K85*45+40#9804#9764
40K → 25.2M627+55#9764#9709
25.2M → Finish155*17+138#9709#9571
TOTALS3550*820+2730

* 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