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BOSTON MARATHON 2023

Alexandra Cooper

Bib: 14069•F

GA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 21%
Gender (Female)
#0 / 11423
Top 5%
Division (F18-39)
#0 / 4884
Top 9%
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
7:06/mi
22:02
↑ 97↓ 3451.5%
10K· 6.21 mi
6:47/mi
43:07
↑ 79↓ 1380.4%
15K· 9.32 mi
6:56/mi
1:04:40
↑ 67↓ 78
20K· 12.43 mi
6:58/mi
1:26:18
↑ 106↓ 860.1%
Half· 13.11 mi
6:47/mi
1:30:56
↑ 19↓ 370.5%
25K· 15.53 mi
7:02/mi
1:47:59
↑ 66↓ 880.2%
30K· 18.64 mi
7:16/mi
2:10:35
↑ 181↓ 1480.2%
20M
7:17/mi
2:20:29
↑ 64↓ 500.2%
21M
7:44/mi
2:28:13
↑ 106↓ 241.6%
35K· 21.75 mi
7:10/mi
2:33:35
↑ 17↓ 861.7%
23M
7:27/mi
2:42:55
↑ 23↓ 630.6%
24M
7:18/mi
2:50:13
↓ 821.3%
40K· 24.85 mi
7:24/mi
2:56:33
↓ 200.3%
25.2M
7:53/mi
2:59:16
↑ 13↓ 160.2%
Finish· 26.22 mi
7:05/mi
3:06:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:56
Pace6:56 /mi
2nd Half
Distance13.11 mi
Time1:35:33
Pace7:17 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4222:027:0622:02
7:06
-
10K
6.21 mi11:11:4743:076:5621:05
6:47
-0:19
15K
9.32 mi11:33:201:04:406:5621:33
6:56
+0:09
20K
12.43 mi11:54:581:26:186:5721:38
6:58
+0:02
Half
13.11 mi11:59:361:30:566:564:38
6:47
-0:11
25K
15.53 mi12:16:391:47:596:5717:03
7:02
+0:15
30K
18.64 mi12:39:152:10:357:0022:36
7:16
+0:14
20M
20.00 mi12:49:092:20:297:019:54
7:17
+0:01
21M
21.00 mi12:56:532:28:137:037:44
7:44
+0:27
35K
21.75 mi13:02:152:33:357:045:22
7:10
-0:34
23M
23.00 mi13:11:352:42:557:059:20
7:27
+0:17
24M
24.00 mi13:18:532:50:137:067:18
7:18
-0:09
40K
24.85 mi13:25:132:56:337:066:20
7:24
+0:06
25.2M
25.20 mi13:27:562:59:167:072:43
7:53
+0:29
Finish
26.22 mi13:35:093:06:297:077:13
7:05
-0:48

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

6:47 /mi

Average Pace

7:07 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:02

94% of race

Time at Steady Pace

10:27

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:07 /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 mi10:50:4222:027:0622:02
7:06
#6835
10K
6.21 mi11:11:4743:076:5621:05
6:47
#6127
15K
9.32 mi11:33:201:04:406:5621:33
6:56
#6117
20K
12.43 mi11:54:581:26:186:5721:38
6:58
#6011
Half
13.11 mi11:59:361:30:566:564:38
6:47
#5970
25K
15.53 mi12:16:391:47:596:5717:03
7:02
#5916
30K
18.64 mi12:39:152:10:357:0022:36
7:16
#5846
20M
20.00 mi12:49:092:20:297:019:54
7:17
#5793
21M
21.00 mi12:56:532:28:137:037:44
7:44
#5755
35K
21.75 mi13:02:152:33:357:045:22
7:10
#5761
23M
23.00 mi13:11:352:42:557:059:20
7:27
#5721
24M
24.00 mi13:18:532:50:137:067:18
7:18
#5693
40K
24.85 mi13:25:132:56:337:066:20
7:24
#5656
25.2M
25.20 mi13:27:562:59:167:072:43
7:53
#5637
Finish
26.22 mi13:35:093:06:297:077:13
7:05
#5583
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi68356766766191(Top 23%)573(Top 5%)573(Top 12%)
10K6.21 mi3.10 mi6127+708536+140536+1405179(Top 19%)383(Top 3%)383(Top 8%)
15K9.32 mi3.11 mi6117+10539-3539-36191(Top 23%)573(Top 5%)573(Top 12%)
20K12.43 mi3.11 mi6011+106521+18521+185755(Top 22%)475(Top 4%)475(Top 10%)
Half13.11 mi0.68 mi5970+41515+6515+65283(Top 20%)405(Top 4%)405(Top 8%)
25K15.53 mi2.42 mi5916+54496+19496+195777(Top 22%)488(Top 4%)488(Top 10%)
30K18.64 mi3.11 mi5846+70494+2494+25900(Top 22%)591(Top 5%)591(Top 12%)
20M20.00 mi1.36 mi5793+53495-1495-15575(Top 21%)588(Top 5%)588(Top 12%)
21M21.00 mi1.00 mi5755+38491+4491+45829(Top 22%)749(Top 7%)749(Top 15%)
35K21.75 mi0.75 mi5761-6499-8499-86392(Top 24%)871(Top 8%)871(Top 18%)
23M23.00 mi1.25 mi5721+40509-10509-106182(Top 23%)868(Top 8%)868(Top 18%)
24M24.00 mi1.00 mi5693+28510-1510-16396(Top 24%)1035(Top 9%)1035(Top 21%)
40K24.85 mi0.85 mi5656+37514-4514-46155(Top 23%)1028(Top 9%)1028(Top 21%)
25.2M25.20 mi0.35 mi5637+19517-3517-35856(Top 22%)987(Top 9%)987(Top 20%)
Finish26.22 mi1.02 mi5583+54518-1518-15738(Top 22%)974(Top 9%)974(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6191

Females

573

F18-39

573

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5179

Females

383

F18-39

383

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6191

Females

573

F18-39

573

15K→20K

9.3 - 12.4 mi

Top 22%
×5story building
+106ft-86ft

Overall

5755

Females

475

F18-39

475

20K→Half

12.4 - 13.1 mi

Top 20%
×2story building
+19ft-37ft

Overall

5283

Females

405

F18-39

405

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

5777

Females

488

F18-39

488

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

5900

Females

591

F18-39

591

30K→20M

18.6 - 20.0 mi

Top 21%
×5story building
+64ft-50ft

Overall

5575

Females

588

F18-39

588

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

5829

Females

749

F18-39

749

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6392

Females

871

F18-39

871

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6182

Females

868

F18-39

868

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6396

Females

1035

F18-39

1035

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6155

Females

1028

F18-39

1028

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5856

Females

987

F18-39

987

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

5738

Females

974

F18-39

974

Passing Analysis

Category:
Athletes Passed
1818
Passed By
566
Net Change
+1252
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6835
5K → 10K72214+708#6835#6127
10K → 15K129119+10#6127#6117
15K → 20K15246+106#6117#6011
20K → Half476+41#6011#5970
Half → 25K10652+54#5970#5916
25K → 30K14878+70#5916#5846
30K → 20M9037+53#5846#5793
20M → 21M7335+38#5793#5755
21M → 35K3036-6#5755#5761
35K → 23M8444+40#5761#5721
23M → 24M6739+28#5721#5693
24M → 40K6326+37#5693#5656
40K → 25.2M2910+19#5656#5637
25.2M → Finish7824+54#5637#5583
TOTALS1818566+1252
📊

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