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BOSTON MARATHON 2023

Alyssa Parker

Bib: 15008•F

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 35%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 28%
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
7:53/mi
24:28
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
48:17
↑ 79↓ 1380.4%
15K· 9.32 mi
7:39/mi
1:12:03
↑ 67↓ 78
20K· 12.43 mi
7:37/mi
1:35:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:40:51
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:59:19
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:23:17
↑ 181↓ 1480.2%
20M
7:36/mi
2:33:36
↑ 64↓ 500.2%
21M
7:52/mi
2:41:28
↑ 106↓ 241.6%
35K· 21.75 mi
7:22/mi
2:46:59
↑ 17↓ 861.7%
23M
7:41/mi
2:56:36
↑ 23↓ 630.6%
24M
7:27/mi
3:04:03
↓ 821.3%
40K· 24.85 mi
7:41/mi
3:10:37
↓ 200.3%
25.2M
7:56/mi
3:13:21
↑ 13↓ 160.2%
Finish· 26.22 mi
7:06/mi
3:20:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:40:51
Pace7:42 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:44
Pace7:36 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:5524:287:5324:28
7:53
-
10K
6.21 mi11:19:4448:177:4623:49
7:40
-0:13
15K
9.32 mi11:43:301:12:037:4423:46
7:39
-0:01
20K
12.43 mi12:07:111:35:447:4223:41
7:37
-0:02
Half
13.11 mi12:12:181:40:517:425:07
7:30
-0:07
25K
15.53 mi12:30:461:59:197:4118:28
7:37
+0:07
30K
18.64 mi12:54:442:23:177:4123:58
7:43
+0:06
20M
20.00 mi13:05:032:33:367:4110:19
7:36
-0:07
21M
21.00 mi13:12:552:41:287:417:52
7:52
+0:16
35K
21.75 mi13:18:262:46:597:415:31
7:22
-0:30
23M
23.00 mi13:28:032:56:367:419:37
7:41
+0:19
24M
24.00 mi13:35:303:04:037:407:27
7:27
-0:14
40K
24.85 mi13:42:043:10:377:406:34
7:41
+0:14
25.2M
25.20 mi13:44:483:13:217:402:44
7:56
+0:15
Finish
26.22 mi13:52:023:20:357:397:14
7:06
-0:50

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

7:06 /mi

Average Pace

7:39 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:31

83% of race

Time at Steady Pace

35:04

17% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi10:55:5524:287:5324:28
7:53
#13037
10K
6.21 mi11:19:4448:177:4623:49
7:40
#12447
15K
9.32 mi11:43:301:12:037:4423:46
7:39
#12075
20K
12.43 mi12:07:111:35:447:4223:41
7:37
#11564
Half
13.11 mi12:12:181:40:517:425:07
7:30
#11479
25K
15.53 mi12:30:461:59:197:4118:28
7:37
#11149
30K
18.64 mi12:54:442:23:177:4123:58
7:43
#10644
20M
20.00 mi13:05:032:33:367:4110:19
7:36
#10404
21M
21.00 mi13:12:552:41:287:417:52
7:52
#10134
35K
21.75 mi13:18:262:46:597:415:31
7:22
#10010
23M
23.00 mi13:28:032:56:367:419:37
7:41
#9828
24M
24.00 mi13:35:303:04:037:407:27
7:27
#9684
40K
24.85 mi13:42:043:10:377:406:34
7:41
#9579
25.2M
25.20 mi13:44:483:13:217:402:44
7:56
#9503
Finish
26.22 mi13:52:023:20:357:397:14
7:06
#9343
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi130373458345811415(Top 43%)2572(Top 23%)2572(Top 53%)
10K6.21 mi3.10 mi12447+5903126+3323126+33211944(Top 45%)2831(Top 25%)2831(Top 58%)
15K9.32 mi3.11 mi12075+3722931+1952931+19511415(Top 43%)2572(Top 23%)2572(Top 53%)
20K12.43 mi3.11 mi11564+5112658+2732658+27310268(Top 39%)2029(Top 18%)2029(Top 42%)
Half13.11 mi0.68 mi11479+852610+482610+4810277(Top 39%)2010(Top 18%)2010(Top 41%)
25K15.53 mi2.42 mi11149+3302436+1742436+1749681(Top 36%)1860(Top 16%)1860(Top 38%)
30K18.64 mi3.11 mi10644+5052222+2142222+2148756(Top 33%)1617(Top 14%)1617(Top 33%)
20M20.00 mi1.36 mi10404+2402122+1002122+1007473(Top 28%)1212(Top 11%)1212(Top 25%)
21M21.00 mi1.00 mi10134+2702008+1142008+1146591(Top 25%)988(Top 9%)988(Top 20%)
35K21.75 mi0.75 mi10010+1241977+311977+317694(Top 29%)1388(Top 12%)1388(Top 28%)
23M23.00 mi1.25 mi9828+1821920+571920+577645(Top 29%)1433(Top 13%)1433(Top 29%)
24M24.00 mi1.00 mi9684+1441880+401880+407403(Top 28%)1450(Top 13%)1450(Top 30%)
40K24.85 mi0.85 mi9579+1051858+221858+227874(Top 30%)1704(Top 15%)1704(Top 35%)
25.2M25.20 mi0.35 mi9503+761839+191839+196176(Top 23%)1126(Top 10%)1126(Top 23%)
Finish26.22 mi1.02 mi9343+1601796+431796+435849(Top 22%)1025(Top 9%)1025(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

11415

Females

2572

F18-39

2572

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

11944

Females

2831

F18-39

2831

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

11415

Females

2572

F18-39

2572

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10268

Females

2029

F18-39

2029

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10277

Females

2010

F18-39

2010

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9681

Females

1860

F18-39

1860

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8756

Females

1617

F18-39

1617

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7473

Females

1212

F18-39

1212

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6591

Females

988

F18-39

988

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7694

Females

1388

F18-39

1388

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7645

Females

1433

F18-39

1433

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7403

Females

1450

F18-39

1450

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7874

Females

1704

F18-39

1704

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6176

Females

1126

F18-39

1126

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

5849

Females

1025

F18-39

1025

Passing Analysis

Category:
Athletes Passed
3951*
Passed By
257
Net Change
+3694
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13037
5K → 10K715125+590#13037#12447
10K → 15K41644+372#12447#12075
15K → 20K52514+511#12075#11564
20K → Half927+85#11564#11479
Half → 25K3388+330#11479#11149
25K → 30K52015+505#11149#10644
30K → 20M243*3+240#10644#10404
20M → 21M2733+270#10404#10134
21M → 35K130*6+124#10134#10010
35K → 23M190*8+182#10010#9828
23M → 24M1506+144#9828#9684
24M → 40K114*9+105#9684#9579
40K → 25.2M760+76#9579#9503
25.2M → Finish1699+160#9503#9343
TOTALS3951*257+3694

* 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