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BOSTON MARATHON 2023

Blair Matlock

Bib: 18053•F

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 36%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:20
Rank: #15115
Start → 5K
25:20 | 8:09/mi
10K· 6.21 mi
50:11
Rank: #14949 (+166)
5K → 10K
24:51 | 8:00/mi
15K· 9.32 mi
1:14:51
Rank: #14580 (+369)
10K → 15K
24:40 | 7:56/mi
20K· 12.43 mi
1:39:58
Rank: #14421 (+159)
15K → 20K
25:07 | 8:05/mi
Half· 13.11 mi
1:45:25
Rank: #14439 (-18)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:05:06
Rank: #14296 (+143)
Half → 25K
19:41 | 8:07/mi
30K· 18.64 mi
2:30:49
Rank: #14032 (+264)
25K → 30K
25:43 | 8:17/mi
20M
2:42:05
Rank: #13865 (+167)
30K → 20M
11:16 | 8:17/mi
21M
2:50:48
Rank: #13723 (+142)
20M → 21M
8:43 | 8:43/mi
35K· 21.75 mi
2:56:59
Rank: #13703 (+20)
21M → 35K
6:11 | 8:16/mi
23M
3:07:46
Rank: #13702 (+1)
35K → 23M
10:47 | 8:37/mi
24M
3:16:14
Rank: #13709 (-7)
23M → 24M
8:28 | 8:28/mi
40K· 24.85 mi
3:23:42
Rank: #13736 (-27)
24M → 40K
7:28 | 8:44/mi
25.2M
3:26:54
Rank: #13739 (-3)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:35:27
Rank: #13758 (-19)
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:25
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:50:02
Pace8:24 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3525:208:0925:20
8:09
-
10K
6.21 mi11:41:2650:118:0524:51
8:00
-0:09
15K
9.32 mi12:06:061:14:518:0224:40
7:56
-0:04
20K
12.43 mi12:31:131:39:588:0325:07
8:05
+0:09
Half
13.11 mi12:36:401:45:258:025:27
7:59
-0:06
25K
15.53 mi12:56:212:05:068:0319:41
8:07
+0:08
30K
18.64 mi13:22:042:30:498:0525:43
8:17
+0:10
20M
20.00 mi13:33:202:42:058:0611:16
8:17
0:00
21M
21.00 mi13:42:032:50:488:088:43
8:43
+0:26
35K
21.75 mi13:48:142:56:598:086:11
8:16
-0:27
23M
23.00 mi13:59:013:07:468:1010:47
8:37
+0:21
24M
24.00 mi14:07:293:16:148:118:28
8:28
-0:09
40K
24.85 mi14:14:573:23:428:127:28
8:44
+0:16
25.2M
25.20 mi14:18:093:26:548:133:12
9:17
+0:33
Finish
26.22 mi14:26:423:35:278:138:33
8:23
-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

7:56 /mi

Average Pace

8:13 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:47

95% of race

Time at Steady Pace

10:40

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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 mi11:16:3525:208:0925:20
8:09
#15115
10K
6.21 mi11:41:2650:118:0524:51
8:00
#14949
15K
9.32 mi12:06:061:14:518:0224:40
7:56
#14580
20K
12.43 mi12:31:131:39:588:0325:07
8:05
#14421
Half
13.11 mi12:36:401:45:258:025:27
7:59
#14439
25K
15.53 mi12:56:212:05:068:0319:41
8:07
#14296
30K
18.64 mi13:22:042:30:498:0525:43
8:17
#14032
20M
20.00 mi13:33:202:42:058:0611:16
8:17
#13865
21M
21.00 mi13:42:032:50:488:088:43
8:43
#13723
35K
21.75 mi13:48:142:56:598:086:11
8:16
#13703
23M
23.00 mi13:59:013:07:468:1010:47
8:37
#13702
24M
24.00 mi14:07:293:16:148:118:28
8:28
#13709
40K
24.85 mi14:14:573:23:428:127:28
8:44
#13736
25.2M
25.20 mi14:18:093:26:548:133:12
9:17
#13739
Finish
26.22 mi14:26:423:35:278:138:33
8:23
#13758
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi151154719471913925(Top 52%)4042(Top 35%)4042(Top 83%)
10K6.21 mi3.10 mi14949+1664620+994620+9914802(Top 56%)4546(Top 40%)4546(Top 93%)
15K9.32 mi3.11 mi14580+3694399+2214399+22113925(Top 52%)4042(Top 35%)4042(Top 83%)
20K12.43 mi3.11 mi14421+1594323+764323+7614129(Top 53%)4179(Top 37%)4179(Top 86%)
Half13.11 mi0.68 mi14439-184338-154338-1514323(Top 54%)4267(Top 37%)4267(Top 87%)
25K15.53 mi2.42 mi14296+1434281+574281+5713637(Top 51%)4004(Top 35%)4004(Top 82%)
30K18.64 mi3.11 mi14032+2644169+1124169+11212895(Top 48%)3693(Top 32%)3693(Top 76%)
20M20.00 mi1.36 mi13865+1674081+884081+8812337(Top 46%)3488(Top 31%)3488(Top 71%)
21M21.00 mi1.00 mi13723+1424004+774004+7711803(Top 44%)3309(Top 29%)3309(Top 68%)
35K21.75 mi0.75 mi13703+204009-54009-513928(Top 52%)4519(Top 40%)4519(Top 93%)
23M23.00 mi1.25 mi13702+14043-344043-3413882(Top 52%)4545(Top 40%)4545(Top 93%)
24M24.00 mi1.00 mi13709-74073-304073-3014293(Top 54%)4834(Top 42%)4834(Top 99%)
40K24.85 mi0.85 mi13736-274105-324105-3214730(Top 55%)5143(Top 45%)5143(Top 105%)
25.2M25.20 mi0.35 mi13739-34116-114116-1114124(Top 53%)4808(Top 42%)4808(Top 98%)
Finish26.22 mi1.02 mi13758-194145-294145-2914687(Top 55%)5084(Top 45%)5084(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13925

Females

4042

F18-39

4042

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14802

Females

4546

F18-39

4546

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13925

Females

4042

F18-39

4042

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

14129

Females

4179

F18-39

4179

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

14323

Females

4267

F18-39

4267

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13637

Females

4004

F18-39

4004

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

12895

Females

3693

F18-39

3693

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12337

Females

3488

F18-39

3488

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

11803

Females

3309

F18-39

3309

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13928

Females

4519

F18-39

4519

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

13882

Females

4545

F18-39

4545

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

14293

Females

4834

F18-39

4834

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14730

Females

5143

F18-39

5143

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14124

Females

4808

F18-39

4808

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

14687

Females

5084

F18-39

5084

Passing Analysis

Category:
Athletes Passed
2356
Passed By
999
Net Change
+1357
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15115
5K → 10K382216+166#15115#14949
10K → 15K42859+369#14949#14580
15K → 20K25899+159#14580#14421
20K → Half2846-18#14421#14439
Half → 25K20865+143#14439#14296
25K → 30K33066+264#14296#14032
30K → 20M19124+167#14032#13865
20M → 21M16725+142#13865#13723
21M → 35K6343+20#13723#13703
35K → 23M9291+1#13703#13702
23M → 24M6774-7#13702#13709
24M → 40K4976-27#13709#13736
40K → 25.2M3235-3#13736#13739
25.2M → Finish6180-19#13739#13758
TOTALS2356999+1357
📊

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