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BOSTON MARATHON 2023

Alison Youngblood

Bib: 18891•F

SC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Masters (Masters Women)
#0 / 6539
Top 8%
Division (F45-49)
#0 / 1817
Top 8%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:27
Rank: #13001
Start → 5K
24:27 | 7:52/mi
10K· 6.21 mi
48:26
Rank: #12650 (+351)
5K → 10K
23:59 | 7:43/mi
15K· 9.32 mi
1:12:20
Rank: #12317 (+333)
10K → 15K
23:54 | 7:42/mi
20K· 12.43 mi
1:36:04
Rank: #11795 (+522)
15K → 20K
23:44 | 7:38/mi
Half· 13.11 mi
1:41:13
Rank: #11726 (+69)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:59:43
Rank: #11359 (+367)
Half → 25K
18:30 | 7:38/mi
30K· 18.64 mi
2:23:56
Rank: #10933 (+426)
25K → 30K
24:13 | 7:48/mi
20M
2:34:40
Rank: #10784 (+149)
30K → 20M
10:44 | 7:54/mi
21M
2:43:06
Rank: #10754 (+30)
20M → 21M
8:26 | 8:26/mi
35K· 21.75 mi
2:48:48
Rank: #10670 (+84)
21M → 35K
5:42 | 7:37/mi
23M
2:58:43
Rank: #10564 (+106)
35K → 23M
9:55 | 7:55/mi
24M
3:06:21
Rank: #10460 (+104)
23M → 24M
7:38 | 7:38/mi
40K· 24.85 mi
3:12:57
Rank: #10343 (+117)
24M → 40K
6:36 | 7:43/mi
25.2M
3:15:52
Rank: #10306 (+37)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:23:34
Rank: #10225 (+81)
25.2M → Finish
7:42 | 7:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:13
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:42:21
Pace7:48 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4224:277:5224:27
7:52
-
10K
6.21 mi11:42:4148:267:4823:59
7:43
-0:09
15K
9.32 mi12:06:351:12:207:4623:54
7:42
-0:01
20K
12.43 mi12:30:191:36:047:4423:44
7:38
-0:04
Half
13.11 mi12:35:281:41:137:435:09
7:33
-0:05
25K
15.53 mi12:53:581:59:437:4218:30
7:38
+0:05
30K
18.64 mi13:18:112:23:567:4324:13
7:48
+0:10
20M
20.00 mi13:28:552:34:407:4410:44
7:54
+0:06
21M
21.00 mi13:37:212:43:067:468:26
8:26
+0:32
35K
21.75 mi13:43:032:48:487:465:42
7:37
-0:49
23M
23.00 mi13:52:582:58:437:469:55
7:55
+0:18
24M
24.00 mi14:00:363:06:217:467:38
7:38
-0:17
40K
24.85 mi14:07:123:12:577:466:36
7:43
+0:05
25.2M
25.20 mi14:10:073:15:527:462:55
8:27
+0:44
Finish
26.22 mi14:17:493:23:347:467:42
7:33
-0:54

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

7:33 /mi

Average Pace

7:46 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:13

94% of race

Time at Steady Pace

11:21

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /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 mi11:18:4224:277:5224:27
7:52
#13001
10K
6.21 mi11:42:4148:267:4823:59
7:43
#12650
15K
9.32 mi12:06:351:12:207:4623:54
7:42
#12317
20K
12.43 mi12:30:191:36:047:4423:44
7:38
#11795
Half
13.11 mi12:35:281:41:137:435:09
7:33
#11726
25K
15.53 mi12:53:581:59:437:4218:30
7:38
#11359
30K
18.64 mi13:18:112:23:567:4324:13
7:48
#10933
20M
20.00 mi13:28:552:34:407:4410:44
7:54
#10784
21M
21.00 mi13:37:212:43:067:468:26
8:26
#10754
35K
21.75 mi13:43:032:48:487:465:42
7:37
#10670
23M
23.00 mi13:52:582:58:437:469:55
7:55
#10564
24M
24.00 mi14:00:363:06:217:467:38
7:38
#10460
40K
24.85 mi14:07:123:12:577:466:36
7:43
#10343
25.2M
25.20 mi14:10:073:15:527:462:55
8:27
#10306
Finish
26.22 mi14:17:493:23:347:467:42
7:33
#10225
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi130013434343411789(Top 44%)2783(Top 24%)2783(Top 153%)
10K6.21 mi3.10 mi12650+3513232+2023232+20212438(Top 47%)3109(Top 27%)3109(Top 171%)
15K9.32 mi3.11 mi12317+3333074+1583074+15811789(Top 44%)2783(Top 24%)2783(Top 153%)
20K12.43 mi3.11 mi11795+5222796+2782796+27810431(Top 39%)2112(Top 18%)2112(Top 116%)
Half13.11 mi0.68 mi11726+692752+442752+4410667(Top 40%)2205(Top 19%)2205(Top 121%)
25K15.53 mi2.42 mi11359+3672568+1842568+1849800(Top 37%)1919(Top 17%)1919(Top 106%)
30K18.64 mi3.11 mi10933+4262364+2042364+2049337(Top 35%)1857(Top 16%)1857(Top 102%)
20M20.00 mi1.36 mi10784+1492324+402324+409576(Top 36%)2052(Top 18%)2052(Top 113%)
21M21.00 mi1.00 mi10754+302329-52329-510091(Top 38%)2424(Top 21%)2424(Top 133%)
35K21.75 mi0.75 mi10670+842309+202309+209441(Top 35%)2118(Top 19%)2118(Top 117%)
23M23.00 mi1.25 mi10564+1062284+252284+259238(Top 35%)2141(Top 19%)2141(Top 118%)
24M24.00 mi1.00 mi10460+1042260+242260+248665(Top 33%)1952(Top 17%)1952(Top 107%)
40K24.85 mi0.85 mi10343+1172224+362224+368137(Top 31%)1801(Top 16%)1801(Top 99%)
25.2M25.20 mi0.35 mi10306+372216+82216+89310(Top 35%)2369(Top 21%)2369(Top 130%)
Finish26.22 mi1.02 mi10225+812209+72209+78990(Top 34%)2241(Top 20%)2241(Top 123%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21stories
+97ft-345ft

Overall

11789

Females

2783

F45-49

2783

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

12438

Females

3109

F45-49

3109

10K→15K

6.2 - 9.3 mi

Top 44%
×3stories
+67ft-78ft

Overall

11789

Females

2783

F45-49

2783

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10431

Females

2112

F45-49

2112

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10667

Females

2205

F45-49

2205

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

9800

Females

1919

F45-49

1919

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

9337

Females

1857

F45-49

1857

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

9576

Females

2052

F45-49

2052

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10091

Females

2424

F45-49

2424

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

9441

Females

2118

F45-49

2118

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9238

Females

2141

F45-49

2141

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8665

Females

1952

F45-49

1952

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8137

Females

1801

F45-49

1801

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9310

Females

2369

F45-49

2369

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

8990

Females

2241

F45-49

2241

Passing Analysis

Category:
Athletes Passed
3266*
Passed By
490
Net Change
+2776
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13001
5K → 10K525174+351#13001#12650
10K → 15K40067+333#12650#12317
15K → 20K5242+522#12317#11795
20K → Half778+69#11795#11726
Half → 25K3736+367#11726#11359
25K → 30K45024+426#11359#10933
30K → 20M165*16+149#10933#10784
20M → 21M8555+30#10784#10754
21M → 35K10016+84#10754#10670
35K → 23M14034+106#10670#10564
23M → 24M12420+104#10564#10460
24M → 40K13720+117#10460#10343
40K → 25.2M5215+37#10343#10306
25.2M → Finish11433+81#10306#10225
TOTALS3266*490+2776

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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