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BOSTON MARATHON 2023

Maddie Pero

Bib: 27020•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
10:40/mi
33:07
↑ 97↓ 3451.5%
10K· 6.21 mi
9:56/mi
1:03:59
↑ 79↓ 1380.4%
15K· 9.32 mi
9:46/mi
1:34:21
↑ 67↓ 78
20K· 12.43 mi
9:54/mi
2:05:06
↑ 106↓ 860.1%
Half· 13.11 mi
9:21/mi
2:11:29
↑ 19↓ 370.5%
25K· 15.53 mi
9:15/mi
2:33:54
↑ 66↓ 880.2%
30K· 18.64 mi
9:12/mi
3:02:29
↑ 181↓ 1480.2%
20M
9:08/mi
3:14:54
↑ 64↓ 500.2%
21M
9:08/mi
3:24:02
↑ 106↓ 241.6%
35K· 21.75 mi
8:40/mi
3:30:31
↑ 17↓ 861.7%
23M
8:24/mi
3:41:02
↑ 23↓ 630.6%
24M
8:15/mi
3:49:17
↓ 821.3%
40K· 24.85 mi
8:32/mi
3:56:35
↓ 200.3%
25.2M
9:23/mi
3:59:49
↑ 13↓ 160.2%
Finish· 26.22 mi
8:16/mi
4:08:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:11:29
Pace10:02 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:56:45
Pace8:54 /mi
📊Negative Split: 11.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:3633:0710:4033:07
10:40
-
10K
6.21 mi12:21:281:03:5910:1830:52
9:56
-0:44
15K
9.32 mi12:51:501:34:2110:0730:22
9:46
-0:10
20K
12.43 mi13:22:352:05:0610:0430:45
9:54
+0:08
Half
13.11 mi13:28:582:11:2910:026:23
9:21
-0:33
25K
15.53 mi13:51:232:33:549:5422:25
9:15
-0:06
30K
18.64 mi14:19:583:02:299:4728:35
9:12
-0:03
20M
20.00 mi14:32:233:14:549:4512:25
9:08
-0:04
21M
21.00 mi14:41:313:24:029:439:08
9:08
0:00
35K
21.75 mi14:48:003:30:319:416:29
8:40
-0:28
23M
23.00 mi14:58:313:41:029:3710:31
8:24
-0:16
24M
24.00 mi15:06:463:49:179:338:15
8:15
-0:09
40K
24.85 mi15:14:043:56:359:317:18
8:32
+0:17
25.2M
25.20 mi15:17:183:59:499:313:14
9:23
+0:51
Finish
26.22 mi15:25:434:08:149:288:25
8:16
-1:07

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

8:15 /mi

Average Pace

9:28 /mi

Slowest Pace

10:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

40:58

17% of race

Time at Steady Pace

1:22:10

33% of race

Time at Slower Pace

2:05:06

50% of race

Average Pace: 9:28 /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 mi11:50:3633:0710:4033:07
10:40
#25095
10K
6.21 mi12:21:281:03:5910:1830:52
9:56
#24258
15K
9.32 mi12:51:501:34:2110:0730:22
9:46
#23844
20K
12.43 mi13:22:352:05:0610:0430:45
9:54
#23569
Half
13.11 mi13:28:582:11:2910:026:23
9:21
#23479
25K
15.53 mi13:51:232:33:549:5422:25
9:15
#22972
30K
18.64 mi14:19:583:02:299:4728:35
9:12
#22318
20M
20.00 mi14:32:233:14:549:4512:25
9:08
#22010
21M
21.00 mi14:41:313:24:029:439:08
9:08
#21707
35K
21.75 mi14:48:003:30:319:416:29
8:40
#21537
23M
23.00 mi14:58:313:41:029:3710:31
8:24
#21161
24M
24.00 mi15:06:463:49:179:338:15
8:15
#20891
40K
24.85 mi15:14:043:56:359:317:18
8:32
#20697
25.2M
25.20 mi15:17:183:59:499:313:14
9:23
#20621
Finish
26.22 mi15:25:434:08:149:288:25
8:16
#20423
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25095104871048722984(Top 86%)9333(Top 82%)9333(Top 191%)
10K6.21 mi3.10 mi24258+83710028+45910028+45923570(Top 89%)9664(Top 85%)9664(Top 198%)
15K9.32 mi3.11 mi23844+4149804+2249804+22422984(Top 86%)9333(Top 82%)9333(Top 191%)
20K12.43 mi3.11 mi23569+2759644+1609644+16022634(Top 85%)9153(Top 80%)9153(Top 187%)
Half13.11 mi0.68 mi23479+909597+479597+4721695(Top 81%)8620(Top 75%)8620(Top 176%)
25K15.53 mi2.42 mi22972+5079346+2519346+25120018(Top 75%)7703(Top 67%)7703(Top 158%)
30K18.64 mi3.11 mi22318+6549017+3299017+32918177(Top 68%)6755(Top 59%)6755(Top 138%)
20M20.00 mi1.36 mi22010+3088851+1668851+16617283(Top 65%)6334(Top 55%)6334(Top 130%)
21M21.00 mi1.00 mi21707+3038690+1618690+16114165(Top 53%)4585(Top 40%)4585(Top 94%)
35K21.75 mi0.75 mi21537+1708606+848606+8416305(Top 61%)5890(Top 52%)5890(Top 121%)
23M23.00 mi1.25 mi21161+3768422+1848422+18412621(Top 47%)3872(Top 34%)3872(Top 79%)
24M24.00 mi1.00 mi20891+2708284+1388284+13812994(Top 49%)4146(Top 36%)4146(Top 85%)
40K24.85 mi0.85 mi20697+1948186+988186+9813638(Top 51%)4559(Top 40%)4559(Top 93%)
25.2M25.20 mi0.35 mi20621+768146+408146+4014705(Top 55%)5171(Top 45%)5171(Top 106%)
Finish26.22 mi1.02 mi20423+1988040+1068040+10613894(Top 52%)4697(Top 41%)4697(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

22984

Females

9333

F18-39

9333

5K→10K

3.1 - 6.2 mi

Top 89%
×5story building
+79ft-138ft

Overall

23570

Females

9664

F18-39

9664

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

22984

Females

9333

F18-39

9333

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22634

Females

9153

F18-39

9153

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21695

Females

8620

F18-39

8620

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

20018

Females

7703

F18-39

7703

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18177

Females

6755

F18-39

6755

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17283

Females

6334

F18-39

6334

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14165

Females

4585

F18-39

4585

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16305

Females

5890

F18-39

5890

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12621

Females

3872

F18-39

3872

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

12994

Females

4146

F18-39

4146

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13638

Females

4559

F18-39

4559

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14705

Females

5171

F18-39

5171

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13894

Females

4697

F18-39

4697

Passing Analysis

Category:
Athletes Passed
4715
Passed By
43
Net Change
+4672
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25095
5K → 10K8447+837#25095#24258
10K → 15K43016+414#24258#23844
15K → 20K29217+275#23844#23569
20K → Half911+90#23569#23479
Half → 25K5081+507#23479#22972
25K → 30K6540+654#22972#22318
30K → 20M3080+308#22318#22010
20M → 21M3030+303#22010#21707
21M → 35K1700+170#21707#21537
35K → 23M3760+376#21537#21161
23M → 24M2700+270#21161#20891
24M → 40K1940+194#20891#20697
40K → 25.2M760+76#20697#20621
25.2M → Finish1991+198#20621#20423
TOTALS471543+4672
📊

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