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BOSTON MARATHON 2023

Katerine Duguay

Bib: 16781•F

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 28%
Masters (Masters Women)
#0 / 6539
Top 15%
Division (F45-49)
#0 / 1817
Top 16%
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
7:58/mi
24:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:55/mi
49:20
↑ 79↓ 1380.4%
15K· 9.32 mi
7:53/mi
1:13:48
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:38:17
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:43:42
↑ 19↓ 370.5%
25K· 15.53 mi
7:55/mi
2:02:54
↑ 66↓ 880.2%
30K· 18.64 mi
8:04/mi
2:27:59
↑ 181↓ 1480.2%
20M
8:05/mi
2:38:58
↑ 64↓ 500.2%
21M
8:31/mi
2:47:29
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:53:27
↑ 17↓ 861.7%
23M
8:08/mi
3:03:38
↑ 23↓ 630.6%
24M
8:02/mi
3:11:40
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:18:41
↓ 200.3%
25.2M
8:45/mi
3:21:42
↑ 13↓ 160.2%
Finish· 26.22 mi
8:04/mi
3:29:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:42
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:46:13
Pace8:06 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1724:447:5824:44
7:58
-
10K
6.21 mi11:39:5349:207:5624:36
7:55
-0:03
15K
9.32 mi12:04:211:13:487:5524:28
7:53
-0:02
20K
12.43 mi12:28:501:38:177:5524:29
7:53
0:00
Half
13.11 mi12:34:151:43:427:555:25
7:56
+0:03
25K
15.53 mi12:53:272:02:547:5519:12
7:55
-0:01
30K
18.64 mi13:18:322:27:597:5625:05
8:04
+0:09
20M
20.00 mi13:29:312:38:587:5710:59
8:05
+0:01
21M
21.00 mi13:38:022:47:297:598:31
8:31
+0:26
35K
21.75 mi13:44:002:53:277:595:58
7:59
-0:32
23M
23.00 mi13:54:113:03:387:5910:11
8:08
+0:09
24M
24.00 mi14:02:133:11:407:598:02
8:02
-0:06
40K
24.85 mi14:09:143:18:418:007:01
8:12
+0:10
25.2M
25.20 mi14:12:153:21:428:003:01
8:45
+0:33
Finish
26.22 mi14:20:283:29:558:018:13
8:04
-0:41

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

7:53 /mi

Average Pace

8:01 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:26:54

99% of race

Time at Steady Pace

3:01

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:00 /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 mi11:15:1724:447:5824:44
7:58
#13739
10K
6.21 mi11:39:5349:207:5624:36
7:55
#13907
15K
9.32 mi12:04:211:13:487:5524:28
7:53
#13725
20K
12.43 mi12:28:501:38:177:5524:29
7:53
#13399
Half
13.11 mi12:34:151:43:427:555:25
7:56
#13398
25K
15.53 mi12:53:272:02:547:5519:12
7:55
#13157
30K
18.64 mi13:18:322:27:597:5625:05
8:04
#12815
20M
20.00 mi13:29:312:38:587:5710:59
8:05
#12614
21M
21.00 mi13:38:022:47:297:598:31
8:31
#12447
35K
21.75 mi13:44:002:53:277:595:58
7:59
#12437
23M
23.00 mi13:54:113:03:387:5910:11
8:08
#12316
24M
24.00 mi14:02:133:11:407:598:02
8:02
#12279
40K
24.85 mi14:09:143:18:418:007:01
8:12
#12243
25.2M
25.20 mi14:12:153:21:428:003:01
8:45
#12213
Finish
26.22 mi14:20:283:29:558:018:13
8:04
#12231
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi137393866386613309(Top 50%)3670(Top 32%)3670(Top 202%)
10K6.21 mi3.10 mi13907-1683984-1183984-11814132(Top 53%)4128(Top 36%)4128(Top 227%)
15K9.32 mi3.11 mi13725+1823898+863898+8613309(Top 50%)3670(Top 32%)3670(Top 202%)
20K12.43 mi3.11 mi13399+3263719+1793719+17912460(Top 47%)3234(Top 28%)3234(Top 178%)
Half13.11 mi0.68 mi13398+13721-23721-213896(Top 52%)4005(Top 35%)4005(Top 220%)
25K15.53 mi2.42 mi13157+2413586+1353586+13512067(Top 45%)3117(Top 27%)3117(Top 172%)
30K18.64 mi3.11 mi12815+3423439+1473439+14711482(Top 43%)2896(Top 25%)2896(Top 159%)
20M20.00 mi1.36 mi12614+2013343+963343+9610922(Top 41%)2702(Top 24%)2702(Top 149%)
21M21.00 mi1.00 mi12447+1673266+773266+7710617(Top 40%)2690(Top 24%)2690(Top 148%)
35K21.75 mi0.75 mi12437+103279-133279-1311977(Top 45%)3413(Top 30%)3413(Top 188%)
23M23.00 mi1.25 mi12316+1213238+413238+4110744(Top 40%)2899(Top 25%)2899(Top 160%)
24M24.00 mi1.00 mi12279+373233+53233+511496(Top 43%)3327(Top 29%)3327(Top 183%)
40K24.85 mi0.85 mi12243+363226+73226+711426(Top 43%)3374(Top 30%)3374(Top 186%)
25.2M25.20 mi0.35 mi12213+303221+53221+511094(Top 42%)3252(Top 28%)3252(Top 179%)
Finish26.22 mi1.02 mi12231-183253-323253-3212575(Top 47%)3992(Top 35%)3992(Top 220%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

13309

Females

3670

F45-49

3670

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

14132

Females

4128

F45-49

4128

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

13309

Females

3670

F45-49

3670

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12460

Females

3234

F45-49

3234

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13896

Females

4005

F45-49

4005

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12067

Females

3117

F45-49

3117

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

11482

Females

2896

F45-49

2896

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10922

Females

2702

F45-49

2702

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10617

Females

2690

F45-49

2690

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

11977

Females

3413

F45-49

3413

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

10744

Females

2899

F45-49

2899

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

11496

Females

3327

F45-49

3327

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11426

Females

3374

F45-49

3374

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11094

Females

3252

F45-49

3252

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12575

Females

3992

F45-49

3992

Passing Analysis

Category:
Athletes Passed
2444
Passed By
936
Net Change
+1508
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13739
5K → 10K213381-168#13739#13907
10K → 15K285103+182#13907#13725
15K → 20K36438+326#13725#13399
20K → Half3332+1#13399#13398
Half → 25K28039+241#13398#13157
25K → 30K38846+342#13157#12815
30K → 20M22423+201#12815#12614
20M → 21M18518+167#12614#12447
21M → 35K5343+10#12447#12437
35K → 23M14322+121#12437#12316
23M → 24M8043+37#12316#12279
24M → 40K7337+36#12279#12243
40K → 25.2M4919+30#12243#12213
25.2M → Finish7492-18#12213#12231
TOTALS2444936+1508
📊

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