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BOSTON MARATHON 2023

Rosalie Smith

CA

Bib: 19854 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 38%
Masters (Masters Women)
#0 / 6539
Top 25%
Division (F40-44)
#0 / 1878
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:38/mi
26:50
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:25/mi
53:00
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:18/mi
1:18:48
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:21/mi
1:44:43
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:17/mi
1:50:22
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:17/mi
2:10:27
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:24/mi
2:36:34
↑ 181↓ 1480.2%
138 ft elev
20M
8:21/mi
2:47:55
↑ 64↓ 500.2%
148 ft elev
21M
8:26/mi
2:56:21
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:59/mi
3:02:19
↑ 17↓ 861.7%
156 ft elev
23M
8:06/mi
3:12:27
↑ 23↓ 630.6%
116 ft elev
24M
7:42/mi
3:20:09
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:42/mi
3:26:44
↓ 200.3%
20 ft elev
25.2M
8:04/mi
3:29:31
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:16/mi
3:36:55
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:50:228:25 /mi+3.5%
2nd Half
1:46:338:08 /mi✓ faster
Negative split — 3.5% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
26:508:383.11 mi26:50
8:38
-
10K
53:008:323.10 mi26:10
8:25
-0:13
15K
1:18:488:273.11 mi25:48
8:18
-0:07
20K
1:44:438:263.11 mi25:55
8:21
+0:03
Half(13.11 mi)
1:50:228:250.68 mi5:39
8:17
-0:04
25K
2:10:278:242.42 mi20:05
8:17
0:00
30K
2:36:348:243.11 mi26:07
8:24
+0:07
20M
2:47:558:241.36 mi11:21
8:21
-0:03
21M
2:56:218:241.00 mi8:26
8:26
+0:05
35K
3:02:198:230.75 mi5:58
7:59
-0:27
23M
3:12:278:221.25 mi10:08
8:06
+0:07
24M
3:20:098:201.00 mi7:42
7:42
-0:24
40K
3:26:448:190.85 mi6:35
7:42
0:00
25.2M
3:29:318:190.35 mi2:47
8:04
+0:22
Finish(26.22 mi)
3:36:558:171.02 mi7:24
7:16
-0:48
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:16 /mi

Average Pace

8:17 /mi

Slowest Pace

8:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

27:39

13% of race

Time at Steady Pace

2:42:26

75% of race

Time at Slower Pace

26:50

12% of race

Average Pace: 8:16 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi18465684668461656256345634
10K3.10 mi18091+3746582+2646582+2641772663216321
15K3.11 mi17542+5496236+3466236+3461656256345634
20K3.11 mi17116+4265996+2405996+2401588852775277
Half(13.11 mi)0.68 mi17070+465971+255971+251636754995499
25K2.42 mi16720+3505782+1895782+1891484647284728
30K3.11 mi16149+5715470+3125470+3121374941834183
20M1.36 mi15871+2785324+1465324+1461274537163716
21M1.00 mi15519+3525126+1985126+1981012024532453
35K0.75 mi15375+1445054+725054+721201734533453
23M1.25 mi15081+2944893+1614893+1611046527592759
24M1.00 mi14839+2424752+1414752+141913621802180
40K0.85 mi14575+2644624+1284624+128803517731773
25.2M0.35 mi14467+1084566+584566+58704914721472
Finish(26.22 mi)1.02 mi14164+3034397+1694397+169690014051405

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

16562

Females

5634

F40-44

5634

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17726

Females

6321

F40-44

6321

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

16562

Females

5634

F40-44

5634

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15888

Females

5277

F40-44

5277

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16367

Females

5499

F40-44

5499

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

14846

Females

4728

F40-44

4728

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

13749

Females

4183

F40-44

4183

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12745

Females

3716

F40-44

3716

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10120

Females

2453

F40-44

2453

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12017

Females

3453

F40-44

3453

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10465

Females

2759

F40-44

2759

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9136

Females

2180

F40-44

2180

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8035

Females

1773

F40-44

1773

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7049

Females

1472

F40-44

1472

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6900

Females

1405

F40-44

1405

Passing Analysis

Category:
Passed
4583
Passed By
282
Net Change
+4301
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18465
5K → 10K561187+374#18465#18091
10K → 15K58940+549#18091#17542
15K → 20K44721+426#17542#17116
20K → Half559+46#17116#17070
Half → 25K3566+350#17070#16720
25K → 30K5809+571#16720#16149
30K → 20M2813+278#16149#15871
20M → 21M3531+352#15871#15519
21M → 35K1451+144#15519#15375
35K → 23M2951+294#15375#15081
23M → 24M2442+242#15081#14839
24M → 40K2640+264#14839#14575
40K → 25.2M1080+108#14575#14467
25.2M → Finish3052+303#14467#14164
TOTALS4583282+4301

Passing Charts

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