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BOSTON MARATHON 2023

Nicole Mccafferty

Bib: 15178•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 44%
Gender (Female)
#0 / 11423
Top 26%
Division (F18-39)
#0 / 4884
Top 43%
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
7:56/mi
24:38
↑ 97↓ 3451.5%
10K· 6.21 mi
7:47/mi
48:48
↑ 79↓ 1380.4%
15K· 9.32 mi
7:41/mi
1:12:41
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:36:41
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:41:55
↑ 19↓ 370.5%
25K· 15.53 mi
7:44/mi
2:00:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:25:33
↑ 181↓ 1480.2%
20M
7:58/mi
2:36:22
↑ 64↓ 500.2%
21M
8:29/mi
2:44:51
↑ 106↓ 241.6%
35K· 21.75 mi
8:53/mi
2:51:30
↑ 17↓ 861.7%
23M
8:15/mi
3:01:50
↑ 23↓ 630.6%
24M
8:12/mi
3:10:02
↓ 821.3%
40K· 24.85 mi
8:15/mi
3:17:05
↓ 200.3%
25.2M
8:45/mi
3:20:06
↑ 13↓ 160.2%
Finish· 26.22 mi
8:05/mi
3:28:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:55
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:46:25
Pace8:07 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5024:387:5624:38
7:56
-
10K
6.21 mi11:19:0048:487:5124:10
7:47
-0:09
15K
9.32 mi11:42:531:12:417:4823:53
7:41
-0:06
20K
12.43 mi12:06:531:36:417:4724:00
7:43
+0:02
Half
13.11 mi12:12:071:41:557:465:14
7:40
-0:03
25K
15.53 mi12:30:532:00:417:4618:46
7:44
+0:04
30K
18.64 mi12:55:452:25:337:4824:52
8:00
+0:16
20M
20.00 mi13:06:342:36:227:4910:49
7:58
-0:02
21M
21.00 mi13:15:032:44:517:518:29
8:29
+0:31
35K
21.75 mi13:21:422:51:307:536:39
8:53
+0:24
23M
23.00 mi13:32:023:01:507:5410:20
8:15
-0:38
24M
24.00 mi13:40:143:10:027:558:12
8:12
-0:03
40K
24.85 mi13:47:173:17:057:567:03
8:15
+0:03
25.2M
25.20 mi13:50:183:20:067:563:01
8:45
+0:30
Finish
26.22 mi13:58:323:28:207:578:14
8:05
-0:40

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

7:40 /mi

Average Pace

7:57 /mi

Slowest Pace

8:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:11

91% of race

Time at Steady Pace

18:09

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:57 /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 mi10:54:5024:387:5624:38
7:56
#13499
10K
6.21 mi11:19:0048:487:5124:10
7:47
#13222
15K
9.32 mi11:42:531:12:417:4823:53
7:41
#12669
20K
12.43 mi12:06:531:36:417:4724:00
7:43
#12218
Half
13.11 mi12:12:071:41:557:465:14
7:40
#12183
25K
15.53 mi12:30:532:00:417:4618:46
7:44
#11902
30K
18.64 mi12:55:452:25:337:4824:52
8:00
#11691
20M
20.00 mi13:06:342:36:227:4910:49
7:58
#11522
21M
21.00 mi13:15:032:44:517:518:29
8:29
#11430
35K
21.75 mi13:21:422:51:307:536:39
8:53
#11727
23M
23.00 mi13:32:023:01:507:5410:20
8:15
#11692
24M
24.00 mi13:40:143:10:027:558:12
8:12
#11734
40K
24.85 mi13:47:173:17:057:567:03
8:15
#11731
25.2M
25.20 mi13:50:183:20:067:563:01
8:45
#11708
Finish
26.22 mi13:58:323:28:207:578:14
8:05
#11731
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi134993715371511765(Top 44%)2768(Top 24%)2768(Top 57%)
10K6.21 mi3.10 mi13222+2773574+1413574+14112957(Top 49%)3403(Top 30%)3403(Top 70%)
15K9.32 mi3.11 mi12669+5533267+3073267+30711765(Top 44%)2768(Top 24%)2768(Top 57%)
20K12.43 mi3.11 mi12218+4513044+2233044+22311123(Top 42%)2472(Top 22%)2472(Top 51%)
Half13.11 mi0.68 mi12183+353028+163028+1611705(Top 44%)2749(Top 24%)2749(Top 56%)
25K15.53 mi2.42 mi11902+2812880+1482880+14810642(Top 40%)2312(Top 20%)2312(Top 47%)
30K18.64 mi3.11 mi11691+2112804+762804+7610958(Top 41%)2619(Top 23%)2619(Top 54%)
20M20.00 mi1.36 mi11522+1692727+772727+7710014(Top 38%)2245(Top 20%)2245(Top 46%)
21M21.00 mi1.00 mi11430+922688+392688+3910416(Top 39%)2587(Top 23%)2587(Top 53%)
35K21.75 mi0.75 mi11727-2972869-1812869-18117389(Top 65%)6482(Top 57%)6482(Top 133%)
23M23.00 mi1.25 mi11692+352874-52874-511564(Top 43%)3281(Top 29%)3281(Top 67%)
24M24.00 mi1.00 mi11734-422914-402914-4012610(Top 47%)3910(Top 34%)3910(Top 80%)
40K24.85 mi0.85 mi11731+32937-232937-2311694(Top 44%)3506(Top 31%)3506(Top 72%)
25.2M25.20 mi0.35 mi11708+232937293711082(Top 42%)3240(Top 28%)3240(Top 66%)
Finish26.22 mi1.02 mi11731-232975-382975-3812660(Top 48%)4036(Top 35%)4036(Top 83%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11765

Females

2768

F18-39

2768

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

12957

Females

3403

F18-39

3403

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11765

Females

2768

F18-39

2768

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11123

Females

2472

F18-39

2472

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

11705

Females

2749

F18-39

2749

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10642

Females

2312

F18-39

2312

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10958

Females

2619

F18-39

2619

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10014

Females

2245

F18-39

2245

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10416

Females

2587

F18-39

2587

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

17389

Females

6482

F18-39

6482

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11564

Females

3281

F18-39

3281

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12610

Females

3910

F18-39

3910

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11694

Females

3506

F18-39

3506

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11082

Females

3240

F18-39

3240

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12660

Females

4036

F18-39

4036

Passing Analysis

Category:
Athletes Passed
2845
Passed By
1077
Net Change
+1768
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13499
5K → 10K463186+277#13499#13222
10K → 15K59340+553#13222#12669
15K → 20K47221+451#12669#12218
20K → Half5318+35#12218#12183
Half → 25K30221+281#12183#11902
25K → 30K28776+211#11902#11691
30K → 20M19526+169#11691#11522
20M → 21M13846+92#11522#11430
21M → 35K7304-297#11430#11727
35K → 23M10671+35#11727#11692
23M → 24M5496-42#11692#11734
24M → 40K6461+3#11734#11731
40K → 25.2M4219+23#11731#11708
25.2M → Finish6992-23#11708#11731
TOTALS28451077+1768
📊

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