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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

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:12:22
Pace5:31 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:12:29
Pace5:32 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:04:5017:505:4417:50
5:44
-
10K
6.21 mi10:21:5034:505:3617:00
5:28
-0:16
15K
9.32 mi10:38:3951:395:3216:49
5:25
-0:03
20K
12.43 mi10:55:401:08:405:3217:01
5:29
+0:04
Half
13.11 mi10:59:221:12:225:313:42
5:25
-0:04
25K
15.53 mi11:12:401:25:405:3113:18
5:29
+0:04
30K
18.64 mi11:30:061:43:065:3217:26
5:37
+0:08
20M
20.00 mi11:37:421:50:425:327:36
5:36
-0:01
21M
21.00 mi11:43:361:56:365:335:54
5:54
+0:18
35K
21.75 mi11:47:332:00:335:333:57
5:17
-0:37
23M
23.00 mi11:54:272:07:275:326:54
5:31
+0:14
24M
24.00 mi11:59:442:12:445:325:17
5:17
-0:14
40K
24.85 mi12:04:222:17:225:324:38
5:25
+0:08
25.2M
25.20 mi12:06:242:19:245:322:02
5:54
+0:29
Finish
26.22 mi12:11:512:24:515:325:27
5:21
-0:33

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

5:17 /mi

Average Pace

5:32 /mi

Slowest Pace

5:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

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

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 mi10:04:5017:505:4417:50
5:44
#317
10K
6.21 mi10:21:5034:505:3617:00
5:28
#202
15K
9.32 mi10:38:3951:395:3216:49
5:25
#148
20K
12.43 mi10:55:401:08:405:3217:01
5:29
#129
Half
13.11 mi10:59:221:12:225:313:42
5:25
#122
25K
15.53 mi11:12:401:25:405:3113:18
5:29
#114
30K
18.64 mi11:30:061:43:065:3217:26
5:37
#105
20M
20.00 mi11:37:421:50:425:327:36
5:36
#102
21M
21.00 mi11:43:361:56:365:335:54
5:54
#98
35K
21.75 mi11:47:332:00:335:333:57
5:17
#90
23M
23.00 mi11:54:272:07:275:326:54
5:31
#84
24M
24.00 mi11:59:442:12:445:325:17
5:17
#81
40K
24.85 mi12:04:222:17:225:324:38
5:25
#77
25.2M
25.20 mi12:06:242:19:245:322:02
5:54
#75
Finish
26.22 mi12:11:512:24:515:325:27
5:21
#74
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi317181893(Top 0.3%)20(Top 0.2%)20(Top 0.4%)
10K6.21 mi3.10 mi202+11523-523-5132(Top 0.5%)23(Top 0.2%)23(Top 0.5%)
15K9.32 mi3.11 mi148+5420+320+393(Top 0.3%)20(Top 0.2%)20(Top 0.4%)
20K12.43 mi3.11 mi129+1919+119+187(Top 0.3%)17(Top 0.1%)17(Top 0.3%)
Half13.11 mi0.68 mi122+718+118+185(Top 0.3%)3(Top 0.03%)3(Top 0.06%)
25K15.53 mi2.42 mi114+817+117+182(Top 0.3%)17(Top 0.1%)17(Top 0.3%)
30K18.64 mi3.11 mi105+9171778(Top 0.3%)12(Top 0.1%)12(Top 0.2%)
20M20.00 mi1.36 mi102+3171779(Top 0.3%)15(Top 0.1%)15(Top 0.3%)
21M21.00 mi1.00 mi98+416+116+180(Top 0.3%)13(Top 0.1%)13(Top 0.3%)
35K21.75 mi0.75 mi90+8161645(Top 0.2%)13(Top 0.1%)13(Top 0.3%)
23M23.00 mi1.25 mi84+6161647(Top 0.2%)9(Top 0.08%)9(Top 0.2%)
24M24.00 mi1.00 mi81+315+115+129(Top 0.1%)7(Top 0.06%)7(Top 0.1%)
40K24.85 mi0.85 mi77+4151529(Top 0.1%)6(Top 0.05%)6(Top 0.1%)
25.2M25.20 mi0.35 mi75+2151551(Top 0.2%)6(Top 0.05%)6(Top 0.1%)
Finish26.22 mi1.02 mi74+114+114+146(Top 0.2%)6(Top 0.05%)6(Top 0.1%)

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:
Athletes Passed
251
Passed By
8
Net Change
+243
SegmentAthletes PassedPassed 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 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