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BOSTON MARATHON 2023

Nell Rojas

CO

Bib: 125 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 0.3%
Gender (Female)
#0 / 11423
Top 0.1%
Division (F18-39)
#0 / 4884
Top 0.3%
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
5:44/mi
17:50
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
5:28/mi
34:50
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
5:25/mi
51:39
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
5:29/mi
1:08:40
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
5:25/mi
1:12:22
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
5:29/mi
1:25:40
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
5:37/mi
1:43:06
↑ 181↓ 1480.2%
138 ft elev
20M
5:36/mi
1:50:42
↑ 64↓ 500.2%
148 ft elev
21M
5:54/mi
1:56:36
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
5:17/mi
2:00:33
↑ 17↓ 861.7%
156 ft elev
23M
5:31/mi
2:07:27
↑ 23↓ 630.6%
116 ft elev
24M
5:17/mi
2:12:44
↓ 821.3%
34 ft elev
40K· 24.85 mi
5:25/mi
2:17:22
↓ 200.3%
20 ft elev
25.2M
5:54/mi
2:19:24
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
5:21/mi
2:24:51
↑ 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
1:12:225:31 /mi⚖️ balanced
2nd Half
1:12:295:32 /mi⚖️ balanced
Even split — consistent pacing between halves
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
17:505:443.11 mi17:50
5:44
-
10K
34:505:363.10 mi17:00
5:28
-0:16
15K
51:395:323.11 mi16:49
5:25
-0:03
20K
1:08:405:323.11 mi17:01
5:29
+0:04
Half(13.11 mi)
1:12:225:310.68 mi3:42
5:25
-0:04
25K
1:25:405:312.42 mi13:18
5:29
+0:04
30K
1:43:065:323.11 mi17:26
5:37
+0:08
20M
1:50:425:321.36 mi7:36
5:36
-0:01
21M
1:56:365:331.00 mi5:54
5:54
+0:18
35K
2:00:335:330.75 mi3:57
5:17
-0:37
23M
2:07:275:321.25 mi6:54
5:31
+0:14
24M
2:12:445:321.00 mi5:17
5:17
-0:14
40K
2:17:225:320.85 mi4:38
5:25
+0:08
25.2M
2:19:245:320.35 mi2:02
5:54
+0:29
Finish(26.22 mi)
2:24:515:321.02 mi5:27
5:21
-0:33
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

5:17 /mi

Average Pace

5:32 /mi

Slowest Pace

5:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:16:55

95% of race

Time at Steady Pace

7:56

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:31 /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. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3171818932020
10K3.10 mi202+11523-523-51322323
15K3.11 mi148+5420+320+3932020
20K3.11 mi129+1919+119+1871717
Half(13.11 mi)0.68 mi122+718+118+18533
25K2.42 mi114+817+117+1821717
30K3.11 mi105+91717781212
20M1.36 mi102+31717791515
21M1.00 mi98+416+116+1801313
35K0.75 mi90+81616451313
23M1.25 mi84+616164799
24M1.00 mi81+315+115+12977
40K0.85 mi77+415152966
25.2M0.35 mi75+215155166
Finish(26.22 mi)1.02 mi74+114+114+14666

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.3%
×21story building
+97ft-345ft

Overall

93

Females

20

F18-39

20

5K→10K

3.1 - 6.2 mi

Top 0.5%
×5story building
+79ft-138ft

Overall

132

Females

23

F18-39

23

10K→15K

6.2 - 9.3 mi

Top 0.3%
×3story building
+67ft-78ft

Overall

93

Females

20

F18-39

20

15K→20K

9.3 - 12.4 mi

Top 0.3%
×5story building
+106ft-86ft

Overall

87

Females

17

F18-39

17

20K→Half

12.4 - 13.1 mi

Top 0.3%
×2story building
+19ft-37ft

Overall

85

Females

3

F18-39

3

Half→25K

13.1 - 15.5 mi

Top 0.3%
×4story building
+66ft-88ft

Overall

82

Females

17

F18-39

17

25K→30K

15.5 - 18.6 mi

Top 0.3%
×9story building
+181ft-148ft

Overall

78

Females

12

F18-39

12

30K→20M

18.6 - 20.0 mi

Top 0.3%
×5story building
+64ft-50ft

Overall

79

Females

15

F18-39

15

20M→21M

20.0 - 21.0 mi

Top 0.3%
×8story building
+106ft-24ft

Overall

80

Females

13

F18-39

13

21M→35K

21.0 - 21.8 mi

Top 0.2%
×7story building
+17ft-86ft

Overall

45

Females

13

F18-39

13

35K→23M

21.8 - 23.0 mi

Top 0.2%
×5story building
+23ft-63ft

Overall

47

Females

9

F18-39

9

23M→24M

23.0 - 24.0 mi

Top 0.1%
×6story building
+12ft-82ft

Overall

29

Females

7

F18-39

7

24M→40K

24.0 - 24.9 mi

Top 0.1%
×1story
+6ft-20ft

Overall

29

Females

6

F18-39

6

40K→25.2M

24.9 - 25.2 mi

Top 0.2%
×1story
+13ft-16ft

Overall

51

Females

6

F18-39

6

25.2M→Finish

25.2 - 26.2 mi

Top 0.2%
×2story building
+22ft-21ft

Overall

46

Females

6

F18-39

6

Passing Analysis

Category:
Passed
251
Passed By
8
Net Change
+243
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#317
5K → 10K1216+115#317#202
10K → 15K540+54#202#148
15K → 20K190+19#148#129
20K → Half70+7#129#122
Half → 25K80+8#122#114
25K → 30K90+9#114#105
30K → 20M30+3#105#102
20M → 21M51+4#102#98
21M → 35K80+8#98#90
35K → 23M60+6#90#84
23M → 24M30+3#84#81
24M → 40K40+4#81#77
40K → 25.2M20+2#77#75
25.2M → Finish21+1#75#74
TOTALS2518+243

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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