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BOSTON MARATHON 2023

Emily Block

Bib: 9323•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 44%
Gender (Female)
#0 / 11423
Top 26%
Division (F18-39)
#0 / 4884
Top 44%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:18
Rank: #12568
Start → 5K
24:18 | 7:49/mi
10K· 6.21 mi
48:33
Rank: #12826 (-258)
5K → 10K
24:15 | 7:48/mi
15K· 9.32 mi
1:12:40
Rank: #12651 (+175)
10K → 15K
24:07 | 7:46/mi
20K· 12.43 mi
1:36:57
Rank: #12416 (+235)
15K → 20K
24:17 | 7:49/mi
Half· 13.11 mi
1:42:16
Rank: #12418 (-2)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:01:13
Rank: #12204 (+214)
Half → 25K
18:57 | 7:49/mi
30K· 18.64 mi
2:25:55
Rank: #11839 (+365)
25K → 30K
24:42 | 7:57/mi
20M
2:36:50
Rank: #11726 (+113)
30K → 20M
10:55 | 8:02/mi
21M
2:45:30
Rank: #11704 (+22)
20M → 21M
8:40 | 8:40/mi
35K· 21.75 mi
2:51:28
Rank: #11712 (-8)
21M → 35K
5:58 | 7:59/mi
23M
3:01:46
Rank: #11666 (+46)
35K → 23M
10:18 | 8:14/mi
24M
3:10:00
Rank: #11722 (-56)
23M → 24M
8:14 | 8:14/mi
40K· 24.85 mi
3:17:04
Rank: #11721 (+1)
24M → 40K
7:04 | 8:16/mi
25.2M
3:20:09
Rank: #11724 (-3)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:28:23
Rank: #11752 (-28)
25.2M → Finish
8:14 | 8:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:16
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:46:07
Pace8:06 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1724:187:4924:18
7:49
-
10K
6.21 mi11:17:3248:337:4924:15
7:48
-0:01
15K
9.32 mi11:41:391:12:407:4824:07
7:46
-0:02
20K
12.43 mi12:05:561:36:577:4824:17
7:49
+0:03
Half
13.11 mi12:11:151:42:167:485:19
7:48
-0:01
25K
15.53 mi12:30:122:01:137:4818:57
7:49
+0:01
30K
18.64 mi12:54:542:25:557:5024:42
7:57
+0:08
20M
20.00 mi13:05:492:36:507:5010:55
8:02
+0:05
21M
21.00 mi13:14:292:45:307:538:40
8:40
+0:38
35K
21.75 mi13:20:272:51:287:535:58
7:59
-0:41
23M
23.00 mi13:30:453:01:467:5410:18
8:14
+0:15
24M
24.00 mi13:38:593:10:007:558:14
8:14
0:00
40K
24.85 mi13:46:033:17:047:567:04
8:16
+0:02
25.2M
25.20 mi13:49:083:20:097:573:05
8:56
+0:40
Finish
26.22 mi13:57:223:28:237:578:14
8:05
-0:51

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

7:46 /mi

Average Pace

7:57 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:38

94% of race

Time at Steady Pace

11:45

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:57 /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 mi10:53:1724:187:4924:18
7:49
#12568
10K
6.21 mi11:17:3248:337:4924:15
7:48
#12826
15K
9.32 mi11:41:391:12:407:4824:07
7:46
#12651
20K
12.43 mi12:05:561:36:577:4824:17
7:49
#12416
Half
13.11 mi12:11:151:42:167:485:19
7:48
#12418
25K
15.53 mi12:30:122:01:137:4818:57
7:49
#12204
30K
18.64 mi12:54:542:25:557:5024:42
7:57
#11839
20M
20.00 mi13:05:492:36:507:5010:55
8:02
#11726
21M
21.00 mi13:14:292:45:307:538:40
8:40
#11704
35K
21.75 mi13:20:272:51:287:535:58
7:59
#11712
23M
23.00 mi13:30:453:01:467:5410:18
8:14
#11666
24M
24.00 mi13:38:593:10:007:558:14
8:14
#11722
40K
24.85 mi13:46:033:17:047:567:04
8:16
#11721
25.2M
25.20 mi13:49:083:20:097:573:05
8:56
#11724
Finish
26.22 mi13:57:223:28:237:578:14
8:05
#11752
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi125683197319712412(Top 47%)3139(Top 27%)3139(Top 64%)
10K6.21 mi3.10 mi12826-2583332-1353332-13513177(Top 49%)3532(Top 31%)3532(Top 72%)
15K9.32 mi3.11 mi12651+1753257+753257+7512412(Top 47%)3139(Top 27%)3139(Top 64%)
20K12.43 mi3.11 mi12416+2353158+993158+9911892(Top 45%)2906(Top 25%)2906(Top 60%)
Half13.11 mi0.68 mi12418-23158315812694(Top 48%)3300(Top 29%)3300(Top 68%)
25K15.53 mi2.42 mi12204+2143056+1023056+10211252(Top 42%)2628(Top 23%)2628(Top 54%)
30K18.64 mi3.11 mi11839+3652888+1682888+16810521(Top 40%)2401(Top 21%)2401(Top 49%)
20M20.00 mi1.36 mi11726+1132839+492839+4910551(Top 40%)2518(Top 22%)2518(Top 52%)
21M21.00 mi1.00 mi11704+222847-82847-811480(Top 43%)3131(Top 27%)3131(Top 64%)
35K21.75 mi0.75 mi11712-82862-152862-1511964(Top 45%)3400(Top 30%)3400(Top 70%)
23M23.00 mi1.25 mi11666+462859+32859+311388(Top 43%)3203(Top 28%)3203(Top 66%)
24M24.00 mi1.00 mi11722-562908-492908-4912838(Top 48%)4037(Top 35%)4037(Top 83%)
40K24.85 mi0.85 mi11721+12933-252933-2511813(Top 44%)3560(Top 31%)3560(Top 73%)
25.2M25.20 mi0.35 mi11724-32945-122945-1212209(Top 46%)3822(Top 33%)3822(Top 78%)
Finish26.22 mi1.02 mi11752-282984-392984-3912661(Top 48%)4037(Top 35%)4037(Top 83%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

12412

Females

3139

F18-39

3139

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

13177

Females

3532

F18-39

3532

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

12412

Females

3139

F18-39

3139

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

11892

Females

2906

F18-39

2906

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

12694

Females

3300

F18-39

3300

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11252

Females

2628

F18-39

2628

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

10521

Females

2401

F18-39

2401

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

10551

Females

2518

F18-39

2518

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11480

Females

3131

F18-39

3131

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

11964

Females

3400

F18-39

3400

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11388

Females

3203

F18-39

3203

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12838

Females

4037

F18-39

4037

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11813

Females

3560

F18-39

3560

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12209

Females

3822

F18-39

3822

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12661

Females

4037

F18-39

4037

Passing Analysis

Category:
Athletes Passed
2107
Passed By
1291
Net Change
+816
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12568
5K → 10K184442-258#12568#12826
10K → 15K302127+175#12826#12651
15K → 20K30974+235#12651#12416
20K → Half3335-2#12416#12418
Half → 25K24430+214#12418#12204
25K → 30K40944+365#12204#11839
30K → 20M15340+113#11839#11726
20M → 21M9876+22#11726#11704
21M → 35K4957-8#11704#11712
35K → 23M11468+46#11712#11666
23M → 24M50106-56#11666#11722
24M → 40K6564+1#11722#11721
40K → 25.2M3033-3#11721#11724
25.2M → Finish6795-28#11724#11752
TOTALS21071291+816
📊

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