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BOSTON MARATHON 2023

Nicole Briscoe

Bib: 26197•F

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
10:45/mi
33:23
↑ 97↓ 3451.5%
10K· 6.21 mi
10:55/mi
1:07:18
↑ 79↓ 1380.4%
15K· 9.32 mi
11:02/mi
1:41:36
↑ 67↓ 78
20K· 12.43 mi
11:08/mi
2:16:11
↑ 106↓ 860.1%
Half· 13.11 mi
11:10/mi
2:23:48
↑ 19↓ 370.5%
25K· 15.53 mi
11:46/mi
2:52:20
↑ 66↓ 880.2%
30K· 18.64 mi
11:42/mi
3:28:40
↑ 181↓ 1480.2%
20M
11:38/mi
3:44:28
↑ 64↓ 500.2%
21M
12:04/mi
3:56:32
↑ 106↓ 241.6%
35K· 21.75 mi
11:30/mi
4:05:08
↑ 17↓ 861.7%
23M
11:35/mi
4:19:38
↑ 23↓ 630.6%
24M
10:57/mi
4:30:35
↓ 821.3%
40K· 24.85 mi
11:09/mi
4:40:07
↓ 200.3%
25.2M
11:39/mi
4:44:08
↑ 13↓ 160.2%
Finish· 26.22 mi
10:02/mi
4:54:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:23:48
Pace10:58 /mi
2nd Half
Distance13.11 mi
Time2:30:33
Pace11:29 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:0533:2310:4533:23
10:45
-
10K
6.21 mi12:28:001:07:1810:5033:55
10:55
+0:10
15K
9.32 mi13:02:181:41:3610:5434:18
11:02
+0:07
20K
12.43 mi13:36:532:16:1110:5734:35
11:08
+0:06
Half
13.11 mi13:44:302:23:4810:587:37
11:10
+0:02
25K
15.53 mi14:13:022:52:2011:0628:32
11:46
+0:36
30K
18.64 mi14:49:223:28:4011:1236:20
11:42
-0:04
20M
20.00 mi15:05:103:44:2811:1315:48
11:38
-0:04
21M
21.00 mi15:17:143:56:3211:1612:04
12:04
+0:26
35K
21.75 mi15:25:504:05:0811:168:36
11:30
-0:34
23M
23.00 mi15:40:204:19:3811:1714:30
11:35
+0:05
24M
24.00 mi15:51:174:30:3511:1610:57
10:57
-0:38
40K
24.85 mi16:00:494:40:0711:169:32
11:09
+0:12
25.2M
25.20 mi16:04:504:44:0811:174:01
11:39
+0:30
Finish
26.22 mi16:15:034:54:2111:1410:13
10:02
-1:37

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

10:02 /mi

Average Pace

11:14 /mi

Slowest Pace

12:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:31

26% of race

Time at Steady Pace

1:36:59

33% of race

Time at Slower Pace

1:59:51

41% of race

Average Pace: 11:14 /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 mi11:54:0533:2310:4533:23
10:45
#25265
10K
6.21 mi12:28:001:07:1810:5033:55
10:55
#25324
15K
9.32 mi13:02:181:41:3610:5434:18
11:02
#25302
20K
12.43 mi13:36:532:16:1110:5734:35
11:08
#25147
Half
13.11 mi13:44:302:23:4810:587:37
11:10
#25149
25K
15.53 mi14:13:022:52:2011:0628:32
11:46
#25141
30K
18.64 mi14:49:223:28:4011:1236:20
11:42
#24961
20M
20.00 mi15:05:103:44:2811:1315:48
11:38
#24865
21M
21.00 mi15:17:143:56:3211:1612:04
12:04
#24778
35K
21.75 mi15:25:504:05:0811:168:36
11:30
#24763
23M
23.00 mi15:40:204:19:3811:1714:30
11:35
#24679
24M
24.00 mi15:51:174:30:3511:1610:57
10:57
#24623
40K
24.85 mi16:00:494:40:0711:169:32
11:09
#24563
25.2M
25.20 mi16:04:504:44:0811:174:01
11:39
#24530
Finish
26.22 mi16:15:034:54:2111:1410:13
10:02
#24458
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi25265105901059025240(Top 95%)10591(Top 93%)10591(Top 564%)
10K6.21 mi3.10 mi25324-5910614-2410614-2425365(Top 95%)10646(Top 93%)10646(Top 567%)
15K9.32 mi3.11 mi25302+22106141061425240(Top 95%)10591(Top 93%)10591(Top 564%)
20K12.43 mi3.11 mi25147+15510539+7510539+7524785(Top 93%)10356(Top 91%)10356(Top 551%)
Half13.11 mi0.68 mi25149-210542-310542-325163(Top 95%)10583(Top 93%)10583(Top 564%)
25K15.53 mi2.42 mi25141+810546-410546-424957(Top 94%)10492(Top 92%)10492(Top 559%)
30K18.64 mi3.11 mi24961+18010461+8510461+8524124(Top 91%)10083(Top 88%)10083(Top 537%)
20M20.00 mi1.36 mi24865+9610424+3710424+3723725(Top 89%)9917(Top 87%)9917(Top 528%)
21M21.00 mi1.00 mi24778+8710375+4910375+4922872(Top 86%)9485(Top 83%)9485(Top 505%)
35K21.75 mi0.75 mi24763+1510372+310372+324108(Top 91%)10187(Top 89%)10187(Top 542%)
23M23.00 mi1.25 mi24679+8410332+4010332+4023401(Top 88%)9808(Top 86%)9808(Top 522%)
24M24.00 mi1.00 mi24623+5610309+2310309+2322971(Top 86%)9623(Top 84%)9623(Top 512%)
40K24.85 mi0.85 mi24563+6010288+2110288+2122661(Top 85%)9486(Top 83%)9486(Top 505%)
25.2M25.20 mi0.35 mi24530+3310270+1810270+1821904(Top 82%)9088(Top 80%)9088(Top 484%)
Finish26.22 mi1.02 mi24458+7210238+3210238+3221857(Top 82%)9049(Top 79%)9049(Top 482%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

25240

Females

10591

F40-44

10591

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

25365

Females

10646

F40-44

10646

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

25240

Females

10591

F40-44

10591

15K→20K

9.3 - 12.4 mi

Top 93%
×5story building
+106ft-86ft

Overall

24785

Females

10356

F40-44

10356

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

25163

Females

10583

F40-44

10583

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

24957

Females

10492

F40-44

10492

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

24124

Females

10083

F40-44

10083

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

23725

Females

9917

F40-44

9917

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

22872

Females

9485

F40-44

9485

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

24108

Females

10187

F40-44

10187

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23401

Females

9808

F40-44

9808

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22971

Females

9623

F40-44

9623

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22661

Females

9486

F40-44

9486

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21904

Females

9088

F40-44

9088

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

21857

Females

9049

F40-44

9049

Passing Analysis

Category:
Athletes Passed
1271
Passed By
464
Net Change
+807
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25265
5K → 10K139198-59#25265#25324
10K → 15K11694+22#25324#25302
15K → 20K17924+155#25302#25147
20K → Half1517-2#25147#25149
Half → 25K8476+8#25149#25141
25K → 30K19212+180#25141#24961
30K → 20M1026+96#24961#24865
20M → 21M914+87#24865#24778
21M → 35K2712+15#24778#24763
35K → 23M928+84#24763#24679
23M → 24M637+56#24679#24623
24M → 40K633+60#24623#24563
40K → 25.2M352+33#24563#24530
25.2M → Finish731+72#24530#24458
TOTALS1271464+807
📊

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