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BOSTON MARATHON 2023

Julie-Ann Shapiro

Bib: 24888•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
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
10:56/mi
33:59
↑ 97↓ 3451.5%
10K· 6.21 mi
11:00/mi
1:08:11
↑ 79↓ 1380.4%
15K· 9.32 mi
11:14/mi
1:43:05
↑ 67↓ 78
20K· 12.43 mi
11:16/mi
2:18:05
↑ 106↓ 860.1%
Half· 13.11 mi
11:11/mi
2:25:43
↑ 19↓ 370.5%
25K· 15.53 mi
12:02/mi
2:54:53
↑ 66↓ 880.2%
30K· 18.64 mi
12:02/mi
3:32:15
↑ 181↓ 1480.2%
20M
12:43/mi
3:49:32
↑ 64↓ 500.2%
21M
12:10/mi
4:01:42
↑ 106↓ 241.6%
35K· 21.75 mi
10:55/mi
4:09:52
↑ 17↓ 861.7%
23M
11:30/mi
4:24:16
↑ 23↓ 630.6%
24M
11:07/mi
4:35:23
↓ 821.3%
40K· 24.85 mi
11:31/mi
4:45:14
↓ 200.3%
25.2M
13:23/mi
4:49:51
↑ 13↓ 160.2%
Finish· 26.22 mi
11:01/mi
5:01:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:25:43
Pace11:07 /mi
2nd Half
Distance13.11 mi
Time2:35:22
Pace11:51 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:1033:5910:5633:59
10:56
-
10K
6.21 mi12:30:221:08:1110:5834:12
11:00
+0:04
15K
9.32 mi13:05:161:43:0511:0434:54
11:14
+0:14
20K
12.43 mi13:40:162:18:0511:0735:00
11:16
+0:02
Half
13.11 mi13:47:542:25:4311:077:38
11:11
-0:05
25K
15.53 mi14:17:042:54:5311:1529:10
12:02
+0:51
30K
18.64 mi14:54:263:32:1511:2337:22
12:02
0:00
20M
20.00 mi15:11:433:49:3211:2917:17
12:43
+0:41
21M
21.00 mi15:23:534:01:4211:3112:10
12:10
-0:33
35K
21.75 mi15:32:034:09:5211:298:10
10:55
-1:15
23M
23.00 mi15:46:274:24:1611:2914:24
11:30
+0:35
24M
24.00 mi15:57:344:35:2311:2811:07
11:07
-0:23
40K
24.85 mi16:07:254:45:1411:299:51
11:31
+0:24
25.2M
25.20 mi16:12:024:49:5111:304:37
13:23
+1:52
Finish
26.22 mi16:23:165:01:0511:3011:14
11:01
-2:22

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

10:55 /mi

Average Pace

11:30 /mi

Slowest Pace

13:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:20:29

67% of race

Time at Slower Pace

1:40:36

33% of race

Average Pace: 11:29 /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 mi11:56:1033:5910:5633:59
10:56
#25590
10K
6.21 mi12:30:221:08:1110:5834:12
11:00
#25551
15K
9.32 mi13:05:161:43:0511:0434:54
11:14
#25528
20K
12.43 mi13:40:162:18:0511:0735:00
11:16
#25380
Half
13.11 mi13:47:542:25:4311:077:38
11:11
#25367
25K
15.53 mi14:17:042:54:5311:1529:10
12:02
#25335
30K
18.64 mi14:54:263:32:1511:2337:22
12:02
#25209
20M
20.00 mi15:11:433:49:3211:2917:17
12:43
#25205
21M
21.00 mi15:23:534:01:4211:3112:10
12:10
#25109
35K
21.75 mi15:32:034:09:5211:298:10
10:55
#25054
23M
23.00 mi15:46:274:24:1611:2914:24
11:30
#24973
24M
24.00 mi15:57:344:35:2311:2811:07
11:07
#24932
40K
24.85 mi16:07:254:45:1411:299:51
11:31
#24873
25.2M
25.20 mi16:12:024:49:5111:304:37
13:23
#24884
Finish
26.22 mi16:23:165:01:0511:3011:14
11:01
#24874
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi25590107811078125455(Top 96%)10717(Top 94%)10717(Top 1315%)
10K6.21 mi3.10 mi25551+3910769+1210769+1225480(Top 96%)10716(Top 94%)10716(Top 1315%)
15K9.32 mi3.11 mi25528+2310752+1710752+1725455(Top 96%)10717(Top 94%)10717(Top 1315%)
20K12.43 mi3.11 mi25380+14810677+7510677+7524966(Top 94%)10460(Top 92%)10460(Top 1283%)
Half13.11 mi0.68 mi25367+1310671+610671+625198(Top 95%)10610(Top 93%)10610(Top 1302%)
25K15.53 mi2.42 mi25335+3210666+510666+525179(Top 95%)10620(Top 93%)10620(Top 1303%)
30K18.64 mi3.11 mi25209+12610603+6310603+6324531(Top 92%)10303(Top 90%)10303(Top 1264%)
20M20.00 mi1.36 mi25205+410614-1110614-1124943(Top 94%)10571(Top 93%)10571(Top 1297%)
21M21.00 mi1.00 mi25109+9610567+4710567+4723008(Top 86%)9561(Top 84%)9561(Top 1173%)
35K21.75 mi0.75 mi25054+5510544+2310544+2323173(Top 87%)9687(Top 85%)9687(Top 1189%)
23M23.00 mi1.25 mi24973+8110503+4110503+4123255(Top 87%)9729(Top 85%)9729(Top 1194%)
24M24.00 mi1.00 mi24932+4110489+1410489+1423280(Top 87%)9792(Top 86%)9792(Top 1201%)
40K24.85 mi0.85 mi24873+5910460+2910460+2923254(Top 87%)9804(Top 86%)9804(Top 1203%)
25.2M25.20 mi0.35 mi24884-1110471-1110471-1124424(Top 92%)10391(Top 91%)10391(Top 1275%)
Finish26.22 mi1.02 mi24874+1010472-110472-124028(Top 90%)10176(Top 89%)10176(Top 1249%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25455

Females

10717

F55-59

10717

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

25480

Females

10716

F55-59

10716

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25455

Females

10717

F55-59

10717

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

24966

Females

10460

F55-59

10460

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

25198

Females

10610

F55-59

10610

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

25179

Females

10620

F55-59

10620

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

24531

Females

10303

F55-59

10303

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

24943

Females

10571

F55-59

10571

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

23008

Females

9561

F55-59

9561

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

23173

Females

9687

F55-59

9687

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

23255

Females

9729

F55-59

9729

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

23280

Females

9792

F55-59

9792

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23254

Females

9804

F55-59

9804

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24424

Females

10391

F55-59

10391

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

24028

Females

10176

F55-59

10176

Passing Analysis

Category:
Athletes Passed
1118
Passed By
402
Net Change
+716
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25590
5K → 10K159120+39#25590#25551
10K → 15K10885+23#25551#25528
15K → 20K17729+148#25528#25380
20K → Half2310+13#25380#25367
Half → 25K8149+32#25367#25335
25K → 30K14721+126#25335#25209
30K → 20M3632+4#25209#25205
20M → 21M1004+96#25205#25109
21M → 35K572+55#25109#25054
35K → 23M821+81#25054#24973
23M → 24M5211+41#24973#24932
24M → 40K678+59#24932#24873
40K → 25.2M617-11#24873#24884
25.2M → Finish2313+10#24884#24874
TOTALS1118402+716
📊

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