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BOSTON MARATHON 2023

Rosemarie Levy

Bib: 21239•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 40%
Masters (Masters Women)
#0 / 6539
Top 27%
Division (F45-49)
#0 / 1817
Top 29%
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
8:29/mi
26:20
↑ 97↓ 3451.5%
10K· 6.21 mi
8:13/mi
51:53
↑ 79↓ 1380.4%
15K· 9.32 mi
8:15/mi
1:17:31
↑ 67↓ 78
20K· 12.43 mi
8:18/mi
1:43:19
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:48:56
↑ 19↓ 370.5%
25K· 15.53 mi
8:17/mi
2:09:00
↑ 66↓ 880.2%
30K· 18.64 mi
8:28/mi
2:35:18
↑ 181↓ 1480.2%
20M
8:31/mi
2:46:52
↑ 64↓ 500.2%
21M
8:42/mi
2:55:34
↑ 106↓ 241.6%
35K· 21.75 mi
8:00/mi
3:01:33
↑ 17↓ 861.7%
23M
8:22/mi
3:12:02
↑ 23↓ 630.6%
24M
8:09/mi
3:20:11
↓ 821.3%
40K· 24.85 mi
8:09/mi
3:27:09
↓ 200.3%
25.2M
8:22/mi
3:30:02
↑ 13↓ 160.2%
Finish· 26.22 mi
7:34/mi
3:37:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:48:56
Pace8:19 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:48:49
Pace8:18 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5926:208:2926:20
8:29
-
10K
6.21 mi11:46:3251:538:2125:33
8:13
-0:16
15K
9.32 mi12:12:101:17:318:1925:38
8:15
+0:02
20K
12.43 mi12:37:581:43:198:1925:48
8:18
+0:03
Half
13.11 mi12:43:351:48:568:195:37
8:14
-0:04
25K
15.53 mi13:03:392:09:008:1820:04
8:17
+0:03
30K
18.64 mi13:29:572:35:188:2026:18
8:28
+0:11
20M
20.00 mi13:41:312:46:528:2111:34
8:31
+0:03
21M
21.00 mi13:50:132:55:348:228:42
8:42
+0:11
35K
21.75 mi13:56:123:01:338:215:59
8:00
-0:42
23M
23.00 mi14:06:413:12:028:2110:29
8:22
+0:22
24M
24.00 mi14:14:503:20:118:208:09
8:09
-0:13
40K
24.85 mi14:21:483:27:098:206:58
8:09
0:00
25.2M
25.20 mi14:24:413:30:028:202:53
8:22
+0:13
Finish
26.22 mi14:32:243:37:458:197:43
7:34
-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

7:34 /mi

Average Pace

8:19 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:29

60% of race

Time at Steady Pace

1:26:16

40% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:18 /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 mi11:20:5926:208:2926:20
8:29
#17395
10K
6.21 mi11:46:3251:538:2125:33
8:13
#16851
15K
9.32 mi12:12:101:17:318:1925:38
8:15
#16632
20K
12.43 mi12:37:581:43:198:1925:48
8:18
#16392
Half
13.11 mi12:43:351:48:568:195:37
8:14
#16365
25K
15.53 mi13:03:392:09:008:1820:04
8:17
#16063
30K
18.64 mi13:29:572:35:188:2026:18
8:28
#15682
20M
20.00 mi13:41:312:46:528:2111:34
8:31
#15517
21M
21.00 mi13:50:132:55:348:228:42
8:42
#15271
35K
21.75 mi13:56:123:01:338:215:59
8:00
#15160
23M
23.00 mi14:06:413:12:028:2110:29
8:22
#14986
24M
24.00 mi14:14:503:20:118:208:09
8:09
#14846
40K
24.85 mi14:21:483:27:098:206:58
8:09
#14683
25.2M
25.20 mi14:24:413:30:028:202:53
8:22
#14596
Finish
26.22 mi14:32:243:37:458:197:43
7:34
#14374
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi173956190619016230(Top 61%)5426(Top 48%)5426(Top 299%)
10K6.21 mi3.10 mi16851+5445808+3825808+38216428(Top 62%)5527(Top 48%)5527(Top 304%)
15K9.32 mi3.11 mi16632+2195680+1285680+12816230(Top 61%)5426(Top 48%)5426(Top 299%)
20K12.43 mi3.11 mi16392+2405547+1335547+13315633(Top 59%)5113(Top 45%)5113(Top 281%)
Half13.11 mi0.68 mi16365+275533+145533+1416022(Top 60%)5290(Top 46%)5290(Top 291%)
25K15.53 mi2.42 mi16063+3025376+1575376+15714799(Top 56%)4703(Top 41%)4703(Top 259%)
30K18.64 mi3.11 mi15682+3815175+2015175+20114089(Top 53%)4386(Top 38%)4386(Top 241%)
20M20.00 mi1.36 mi15517+1655099+765099+7613719(Top 52%)4252(Top 37%)4252(Top 234%)
21M21.00 mi1.00 mi15271+2464976+1234976+12311712(Top 44%)3263(Top 29%)3263(Top 180%)
35K21.75 mi0.75 mi15160+1114920+564920+5612186(Top 46%)3549(Top 31%)3549(Top 195%)
23M23.00 mi1.25 mi14986+1744825+954825+9512441(Top 47%)3771(Top 33%)3771(Top 208%)
24M24.00 mi1.00 mi14846+1404758+674758+6712298(Top 46%)3758(Top 33%)3758(Top 207%)
40K24.85 mi0.85 mi14683+1634690+684690+6811077(Top 42%)3202(Top 28%)3202(Top 176%)
25.2M25.20 mi0.35 mi14596+874647+434647+438802(Top 33%)2205(Top 19%)2205(Top 121%)
Finish26.22 mi1.02 mi14374+2224528+1194528+1199144(Top 34%)2314(Top 20%)2314(Top 127%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

16230

Females

5426

F45-49

5426

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16428

Females

5527

F45-49

5527

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

16230

Females

5426

F45-49

5426

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15633

Females

5113

F45-49

5113

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16022

Females

5290

F45-49

5290

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

14799

Females

4703

F45-49

4703

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14089

Females

4386

F45-49

4386

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13719

Females

4252

F45-49

4252

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11712

Females

3263

F45-49

3263

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12186

Females

3549

F45-49

3549

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12441

Females

3771

F45-49

3771

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12298

Females

3758

F45-49

3758

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11077

Females

3202

F45-49

3202

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8802

Females

2205

F45-49

2205

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9144

Females

2314

F45-49

2314

Passing Analysis

Category:
Athletes Passed
3431
Passed By
410
Net Change
+3021
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17395
5K → 10K678134+544#17395#16851
10K → 15K321102+219#16851#16632
15K → 20K29656+240#16632#16392
20K → Half4922+27#16392#16365
Half → 25K32321+302#16365#16063
25K → 30K41231+381#16063#15682
30K → 20M17914+165#15682#15517
20M → 21M2504+246#15517#15271
21M → 35K1132+111#15271#15160
35K → 23M18511+174#15160#14986
23M → 24M1499+140#14986#14846
24M → 40K1652+163#14846#14683
40K → 25.2M881+87#14683#14596
25.2M → Finish2231+222#14596#14374
TOTALS3431410+3021
📊

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