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BOSTON MARATHON 2023

Deborah Alper

Bib: 23700•F

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 41%
Division (F55-59)
#0 / 815
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:38
Rank: #19956
Start → 5K
27:38 | 8:54/mi
10K· 6.21 mi
54:30
Rank: #19523 (+433)
5K → 10K
26:52 | 8:39/mi
15K· 9.32 mi
1:21:26
Rank: #19249 (+274)
10K → 15K
26:56 | 8:40/mi
20K· 12.43 mi
1:48:35
Rank: #19004 (+245)
15K → 20K
27:09 | 8:44/mi
Half· 13.11 mi
1:54:30
Rank: #18994 (+10)
20K → Half
5:55 | 8:40/mi
25K· 15.53 mi
2:15:31
Rank: #18700 (+294)
Half → 25K
21:01 | 8:40/mi
30K· 18.64 mi
2:42:50
Rank: #18189 (+511)
25K → 30K
27:19 | 8:48/mi
20M
2:54:42
Rank: #17937 (+252)
30K → 20M
11:52 | 8:44/mi
21M
3:03:49
Rank: #17704 (+233)
20M → 21M
9:07 | 9:07/mi
35K· 21.75 mi
3:09:51
Rank: #17522 (+182)
21M → 35K
6:02 | 8:04/mi
23M
3:20:23
Rank: #17250 (+272)
35K → 23M
10:32 | 8:25/mi
24M
3:28:29
Rank: #17012 (+238)
23M → 24M
8:06 | 8:06/mi
40K· 24.85 mi
3:35:33
Rank: #16832 (+180)
24M → 40K
7:04 | 8:16/mi
25.2M
3:38:36
Rank: #16743 (+89)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:46:52
Rank: #16589 (+154)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:54:30
Pace8:44 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:52:22
Pace8:34 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5027:388:5427:38
8:54
-
10K
6.21 mi11:49:4254:308:4626:52
8:39
-0:15
15K
9.32 mi12:16:381:21:268:4426:56
8:40
+0:01
20K
12.43 mi12:43:471:48:358:4427:09
8:44
+0:04
Half
13.11 mi12:49:421:54:308:445:55
8:40
-0:04
25K
15.53 mi13:10:432:15:318:4321:01
8:40
0:00
30K
18.64 mi13:38:022:42:508:4427:19
8:48
+0:08
20M
20.00 mi13:49:542:54:428:4411:52
8:44
-0:04
21M
21.00 mi13:59:013:03:498:459:07
9:07
+0:23
35K
21.75 mi14:05:033:09:518:446:02
8:04
-1:03
23M
23.00 mi14:15:353:20:238:4310:32
8:25
+0:21
24M
24.00 mi14:23:413:28:298:418:06
8:06
-0:19
40K
24.85 mi14:30:453:35:338:407:04
8:16
+0:10
25.2M
25.20 mi14:33:483:38:368:403:03
8:51
+0:35
Finish
26.22 mi14:42:043:46:528:408:16
8:07
-0:44

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

8:04 /mi

Average Pace

8:40 /mi

Slowest Pace

9:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:07

84% of race

Time at Steady Pace

36:45

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:39 /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 mi11:22:5027:388:5427:38
8:54
#19956
10K
6.21 mi11:49:4254:308:4626:52
8:39
#19523
15K
9.32 mi12:16:381:21:268:4426:56
8:40
#19249
20K
12.43 mi12:43:471:48:358:4427:09
8:44
#19004
Half
13.11 mi12:49:421:54:308:445:55
8:40
#18994
25K
15.53 mi13:10:432:15:318:4321:01
8:40
#18700
30K
18.64 mi13:38:022:42:508:4427:19
8:48
#18189
20M
20.00 mi13:49:542:54:428:4411:52
8:44
#17937
21M
21.00 mi13:59:013:03:498:459:07
9:07
#17704
35K
21.75 mi14:05:033:09:518:446:02
8:04
#17522
23M
23.00 mi14:15:353:20:238:4310:32
8:25
#17250
24M
24.00 mi14:23:413:28:298:418:06
8:06
#17012
40K
24.85 mi14:30:453:35:338:407:04
8:16
#16832
25.2M
25.20 mi14:33:483:38:368:403:03
8:51
#16743
Finish
26.22 mi14:42:043:46:528:408:16
8:07
#16589
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi199567786778618833(Top 71%)6996(Top 61%)6996(Top 858%)
10K6.21 mi3.10 mi19523+4337477+3097477+30919119(Top 72%)7152(Top 63%)7152(Top 878%)
15K9.32 mi3.11 mi19249+2747281+1967281+19618833(Top 71%)6996(Top 61%)6996(Top 858%)
20K12.43 mi3.11 mi19004+2457124+1577124+15718352(Top 69%)6706(Top 59%)6706(Top 823%)
Half13.11 mi0.68 mi18994+107120+47120+418775(Top 71%)6932(Top 61%)6932(Top 851%)
25K15.53 mi2.42 mi18700+2946950+1706950+17017212(Top 65%)6121(Top 54%)6121(Top 751%)
30K18.64 mi3.11 mi18189+5116681+2696681+26916021(Top 60%)5514(Top 48%)5514(Top 677%)
20M20.00 mi1.36 mi17937+2526548+1336548+13315088(Top 57%)5055(Top 44%)5055(Top 620%)
21M21.00 mi1.00 mi17704+2336413+1356413+13514089(Top 53%)4536(Top 40%)4536(Top 557%)
35K21.75 mi0.75 mi17522+1826323+906323+9012653(Top 48%)3814(Top 33%)3814(Top 468%)
23M23.00 mi1.25 mi17250+2726172+1516172+15112709(Top 48%)3922(Top 34%)3922(Top 481%)
24M24.00 mi1.00 mi17012+2386053+1196053+11911995(Top 45%)3596(Top 31%)3596(Top 441%)
40K24.85 mi0.85 mi16832+1805965+885965+8811854(Top 45%)3601(Top 32%)3601(Top 442%)
25.2M25.20 mi0.35 mi16743+895919+465919+4611731(Top 44%)3627(Top 32%)3627(Top 445%)
Finish26.22 mi1.02 mi16589+1545835+845835+8412906(Top 48%)4177(Top 37%)4177(Top 513%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

18833

Females

6996

F55-59

6996

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

19119

Females

7152

F55-59

7152

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

18833

Females

6996

F55-59

6996

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

18352

Females

6706

F55-59

6706

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18775

Females

6932

F55-59

6932

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

17212

Females

6121

F55-59

6121

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

16021

Females

5514

F55-59

5514

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

15088

Females

5055

F55-59

5055

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14089

Females

4536

F55-59

4536

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

12653

Females

3814

F55-59

3814

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12709

Females

3922

F55-59

3922

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

11995

Females

3596

F55-59

3596

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11854

Females

3601

F55-59

3601

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11731

Females

3627

F55-59

3627

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12906

Females

4177

F55-59

4177

Passing Analysis

Category:
Athletes Passed
3731
Passed By
364
Net Change
+3367
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19956
5K → 10K577144+433#19956#19523
10K → 15K35682+274#19523#19249
15K → 20K30964+245#19249#19004
20K → Half2919+10#19004#18994
Half → 25K31016+294#18994#18700
25K → 30K5209+511#18700#18189
30K → 20M2608+252#18189#17937
20M → 21M2385+233#17937#17704
21M → 35K1853+182#17704#17522
35K → 23M2753+272#17522#17250
23M → 24M2391+238#17250#17012
24M → 40K1800+180#17012#16832
40K → 25.2M901+89#16832#16743
25.2M → Finish1639+154#16743#16589
TOTALS3731364+3367
📊

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