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BOSTON MARATHON 2023

Blair Read

Bib: 25033•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
8:58/mi
27:51
↑ 97↓ 3451.5%
10K· 6.21 mi
8:47/mi
55:09
↑ 79↓ 1380.4%
15K· 9.32 mi
8:42/mi
1:22:11
↑ 67↓ 78
20K· 12.43 mi
8:49/mi
1:49:34
↑ 106↓ 860.1%
Half· 13.11 mi
8:43/mi
1:55:31
↑ 19↓ 370.5%
25K· 15.53 mi
8:55/mi
2:17:07
↑ 66↓ 880.2%
30K· 18.64 mi
9:22/mi
2:46:13
↑ 181↓ 1480.2%
20M
9:33/mi
2:59:11
↑ 64↓ 500.2%
21M
10:39/mi
3:09:50
↑ 106↓ 241.6%
35K· 21.75 mi
10:04/mi
3:17:22
↑ 17↓ 861.7%
23M
11:10/mi
3:31:21
↑ 23↓ 630.6%
24M
9:47/mi
3:41:08
↓ 821.3%
40K· 24.85 mi
8:52/mi
3:48:43
↓ 200.3%
25.2M
9:28/mi
3:51:59
↑ 13↓ 160.2%
Finish· 26.22 mi
8:40/mi
4:00:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:31
Pace8:49 /mi
2nd Half
Distance13.11 mi
Time2:05:18
Pace9:33 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:3227:518:5827:51
8:58
-
10K
6.21 mi12:10:5055:098:5327:18
8:47
-0:11
15K
9.32 mi12:37:521:22:118:4927:02
8:42
-0:05
20K
12.43 mi13:05:151:49:348:4927:23
8:49
+0:07
Half
13.11 mi13:11:121:55:318:495:57
8:43
-0:06
25K
15.53 mi13:32:482:17:078:5021:36
8:55
+0:12
30K
18.64 mi14:01:542:46:138:5529:06
9:22
+0:27
20M
20.00 mi14:14:522:59:118:5812:58
9:33
+0:11
21M
21.00 mi14:25:313:09:509:0210:39
10:39
+1:06
35K
21.75 mi14:33:033:17:229:057:32
10:04
-0:35
23M
23.00 mi14:47:023:31:219:1113:59
11:10
+1:06
24M
24.00 mi14:56:493:41:089:139:47
9:47
-1:23
40K
24.85 mi15:04:243:48:439:127:35
8:52
-0:55
25.2M
25.20 mi15:07:403:51:599:123:16
9:28
+0:36
Finish
26.22 mi15:16:304:00:499:118:50
8:40
-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

8:40 /mi

Average Pace

9:11 /mi

Slowest Pace

11:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:33:32

64% of race

Time at Slower Pace

1:27:17

36% of race

Average Pace: 9:11 /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 mi11:43:3227:518:5827:51
8:58
#20283
10K
6.21 mi12:10:5055:098:5327:18
8:47
#20061
15K
9.32 mi12:37:521:22:118:4927:02
8:42
#19694
20K
12.43 mi13:05:151:49:348:4927:23
8:49
#19407
Half
13.11 mi13:11:121:55:318:495:57
8:43
#19388
25K
15.53 mi13:32:482:17:078:5021:36
8:55
#19241
30K
18.64 mi14:01:542:46:138:5529:06
9:22
#19196
20M
20.00 mi14:14:522:59:118:5812:58
9:33
#19170
21M
21.00 mi14:25:313:09:509:0210:39
10:39
#19230
35K
21.75 mi14:33:033:17:229:057:32
10:04
#19346
23M
23.00 mi14:47:023:31:219:1113:59
11:10
#19700
24M
24.00 mi14:56:493:41:089:139:47
9:47
#19721
40K
24.85 mi15:04:243:48:439:127:35
8:52
#19584
25.2M
25.20 mi15:07:403:51:599:123:16
9:28
#19528
Finish
26.22 mi15:16:304:00:499:118:50
8:40
#19447
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi202837990799019000(Top 71%)7103(Top 62%)7103(Top 145%)
10K6.21 mi3.10 mi20061+2227799+1917799+19119870(Top 75%)7622(Top 67%)7622(Top 156%)
15K9.32 mi3.11 mi19694+3677564+2357564+23519000(Top 71%)7103(Top 62%)7103(Top 145%)
20K12.43 mi3.11 mi19407+2877375+1897375+18918776(Top 71%)6954(Top 61%)6954(Top 142%)
Half13.11 mi0.68 mi19388+197362+137362+1319118(Top 72%)7160(Top 63%)7160(Top 147%)
25K15.53 mi2.42 mi19241+1477263+997263+9918523(Top 70%)6866(Top 60%)6866(Top 141%)
30K18.64 mi3.11 mi19196+457254+97254+918890(Top 71%)7139(Top 62%)7139(Top 146%)
20M20.00 mi1.36 mi19170+267253+17253+119034(Top 71%)7317(Top 64%)7317(Top 150%)
21M21.00 mi1.00 mi19230-607302-497302-4920016(Top 75%)7939(Top 70%)7939(Top 163%)
35K21.75 mi0.75 mi19346-1167376-747376-7421488(Top 81%)8754(Top 77%)8754(Top 179%)
23M23.00 mi1.25 mi19700-3547583-2077583-20722675(Top 85%)9415(Top 82%)9415(Top 193%)
24M24.00 mi1.00 mi19721-217604-217604-2120172(Top 76%)8065(Top 71%)8065(Top 165%)
40K24.85 mi0.85 mi19584+1377533+717533+7115502(Top 58%)5596(Top 49%)5596(Top 115%)
25.2M25.20 mi0.35 mi19528+567511+227511+2215178(Top 57%)5432(Top 48%)5432(Top 111%)
Finish26.22 mi1.02 mi19447+817468+437468+4316365(Top 61%)6034(Top 53%)6034(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

19000

Females

7103

F18-39

7103

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

19870

Females

7622

F18-39

7622

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

19000

Females

7103

F18-39

7103

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18776

Females

6954

F18-39

6954

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

19118

Females

7160

F18-39

7160

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

18523

Females

6866

F18-39

6866

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18890

Females

7139

F18-39

7139

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

19034

Females

7317

F18-39

7317

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

20016

Females

7939

F18-39

7939

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21488

Females

8754

F18-39

8754

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22675

Females

9415

F18-39

9415

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

20172

Females

8065

F18-39

8065

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15502

Females

5596

F18-39

5596

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15178

Females

5432

F18-39

5432

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

16365

Females

6034

F18-39

6034

Passing Analysis

Category:
Athletes Passed
2155
Passed By
1319
Net Change
+836
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20283
5K → 10K448226+222#20283#20061
10K → 15K42760+367#20061#19694
15K → 20K32538+287#19694#19407
20K → Half3920+19#19407#19388
Half → 25K19851+147#19388#19241
25K → 30K188143+45#19241#19196
30K → 20M10074+26#19196#19170
20M → 21M58118-60#19170#19230
21M → 35K15131-116#19230#19346
35K → 23M19373-354#19346#19700
23M → 24M4162-21#19700#19721
24M → 40K1414+137#19721#19584
40K → 25.2M571+56#19584#19528
25.2M → Finish9918+81#19528#19447
TOTALS21551319+836
📊

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