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BOSTON MARATHON 2023

Nissa Kubly

Bib: 18467•F

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 42%
Gender (Female)
#0 / 11423
Top 24%
Masters (Masters Women)
#0 / 6539
Top 11%
Division (F45-49)
#0 / 1817
Top 12%
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
8:11/mi
25:24
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
49:27
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:13:04
↑ 67↓ 78
20K· 12.43 mi
7:37/mi
1:36:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:41:54
↑ 19↓ 370.5%
25K· 15.53 mi
7:44/mi
2:00:40
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:25:17
↑ 181↓ 1480.2%
20M
7:56/mi
2:36:04
↑ 64↓ 500.2%
21M
8:30/mi
2:44:34
↑ 106↓ 241.6%
35K· 21.75 mi
7:44/mi
2:50:21
↑ 17↓ 861.7%
23M
8:10/mi
3:00:35
↑ 23↓ 630.6%
24M
8:00/mi
3:08:35
↓ 821.3%
40K· 24.85 mi
8:07/mi
3:15:31
↓ 200.3%
25.2M
8:51/mi
3:18:34
↑ 13↓ 160.2%
Finish· 26.22 mi
8:00/mi
3:26:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:54
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:44:49
Pace8:00 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5525:248:1125:24
8:11
-
10K
6.21 mi11:40:5849:277:5724:03
7:44
-0:27
15K
9.32 mi12:04:351:13:047:5023:37
7:36
-0:08
20K
12.43 mi12:28:151:36:447:4723:40
7:37
+0:01
Half
13.11 mi12:33:251:41:547:465:10
7:34
-0:03
25K
15.53 mi12:52:112:00:407:4618:46
7:44
+0:10
30K
18.64 mi13:16:482:25:177:4824:37
7:55
+0:11
20M
20.00 mi13:27:352:36:047:4810:47
7:56
+0:01
21M
21.00 mi13:36:052:44:347:508:30
8:30
+0:34
35K
21.75 mi13:41:522:50:217:505:47
7:44
-0:46
23M
23.00 mi13:52:063:00:357:5110:14
8:10
+0:26
24M
24.00 mi14:00:063:08:357:518:00
8:00
-0:10
40K
24.85 mi14:07:023:15:317:526:56
8:07
+0:07
25.2M
25.20 mi14:10:053:18:347:533:03
8:51
+0:44
Finish
26.22 mi14:18:143:26:437:538:09
8:00
-0:51

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

7:34 /mi

Average Pace

7:53 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:10

94% of race

Time at Steady Pace

11:33

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:53 /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 mi11:16:5525:248:1125:24
8:11
#15271
10K
6.21 mi11:40:5849:277:5724:03
7:44
#14062
15K
9.32 mi12:04:351:13:047:5023:37
7:36
#13035
20K
12.43 mi12:28:151:36:447:4723:40
7:37
#12256
Half
13.11 mi12:33:251:41:547:465:10
7:34
#12161
25K
15.53 mi12:52:112:00:407:4618:46
7:44
#11886
30K
18.64 mi13:16:482:25:177:4824:37
7:55
#11554
20M
20.00 mi13:27:352:36:047:4810:47
7:56
#11389
21M
21.00 mi13:36:052:44:347:508:30
8:30
#11296
35K
21.75 mi13:41:522:50:217:505:47
7:44
#11249
23M
23.00 mi13:52:063:00:357:5110:14
8:10
#11218
24M
24.00 mi14:00:063:08:357:518:00
8:00
#11221
40K
24.85 mi14:07:023:15:317:526:56
8:07
#11178
25.2M
25.20 mi14:10:053:18:347:533:03
8:51
#11174
Finish
26.22 mi14:18:143:26:437:538:09
8:00
#11205
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi152714808480811049(Top 42%)2378(Top 21%)2378(Top 131%)
10K6.21 mi3.10 mi14062+12094074+7344074+73412601(Top 47%)3204(Top 28%)3204(Top 176%)
15K9.32 mi3.11 mi13035+10273479+5953479+59511049(Top 42%)2378(Top 21%)2378(Top 131%)
20K12.43 mi3.11 mi12256+7793066+4133066+41310234(Top 38%)2019(Top 18%)2019(Top 111%)
Half13.11 mi0.68 mi12161+953011+553011+5510889(Top 41%)2318(Top 20%)2318(Top 128%)
25K15.53 mi2.42 mi11886+2752867+1442867+14410641(Top 40%)2311(Top 20%)2311(Top 127%)
30K18.64 mi3.11 mi11554+3322719+1482719+14810331(Top 39%)2321(Top 20%)2321(Top 128%)
20M20.00 mi1.36 mi11389+1652649+702649+709824(Top 37%)2166(Top 19%)2166(Top 119%)
21M21.00 mi1.00 mi11296+932620+292620+2910508(Top 39%)2629(Top 23%)2629(Top 145%)
35K21.75 mi0.75 mi11249+472604+162604+1610197(Top 38%)2466(Top 22%)2466(Top 136%)
23M23.00 mi1.25 mi11218+312615-112615-1111013(Top 41%)3023(Top 26%)3023(Top 166%)
24M24.00 mi1.00 mi11221-32636-212636-2111253(Top 42%)3215(Top 28%)3215(Top 177%)
40K24.85 mi0.85 mi11178+432639-32639-310788(Top 41%)3036(Top 27%)3036(Top 167%)
25.2M25.20 mi0.35 mi11174+42655-162655-1611615(Top 44%)3511(Top 31%)3511(Top 193%)
Finish26.22 mi1.02 mi11205-312693-382693-3812138(Top 46%)3767(Top 33%)3767(Top 207%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11049

Females

2378

F45-49

2378

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12601

Females

3204

F45-49

3204

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11049

Females

2378

F45-49

2378

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10234

Females

2019

F45-49

2019

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10889

Females

2318

F45-49

2318

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10641

Females

2311

F45-49

2311

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10331

Females

2321

F45-49

2321

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9824

Females

2166

F45-49

2166

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10508

Females

2629

F45-49

2629

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10197

Females

2466

F45-49

2466

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

11013

Females

3023

F45-49

3023

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11253

Females

3215

F45-49

3215

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10788

Females

3036

F45-49

3036

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11615

Females

3511

F45-49

3511

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12138

Females

3767

F45-49

3767

Passing Analysis

Category:
Athletes Passed
4581
Passed By
515
Net Change
+4066
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15271
5K → 10K124738+1209#15271#14062
10K → 15K10369+1027#14062#13035
15K → 20K7856+779#13035#12256
20K → Half1005+95#12256#12161
Half → 25K29722+275#12161#11886
25K → 30K37543+332#11886#11554
30K → 20M18116+165#11554#11389
20M → 21M13845+93#11389#11296
21M → 35K7023+47#11296#11249
35K → 23M10473+31#11249#11218
23M → 24M7073-3#11218#11221
24M → 40K8138+43#11221#11178
40K → 25.2M4036+4#11178#11174
25.2M → Finish5788-31#11174#11205
TOTALS4581515+4066
📊

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