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BOSTON MARATHON 2023

Adrienne Koufos

Bib: 26896•F

MA

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
10:05/mi
31:19
↑ 97↓ 3451.5%
10K· 6.21 mi
9:33/mi
1:00:58
↑ 79↓ 1380.4%
15K· 9.32 mi
10:15/mi
1:32:50
↑ 67↓ 78
20K· 12.43 mi
9:52/mi
2:03:29
↑ 106↓ 860.1%
Half· 13.11 mi
9:36/mi
2:10:02
↑ 19↓ 370.5%
25K· 15.53 mi
10:32/mi
2:35:34
↑ 66↓ 880.2%
30K· 18.64 mi
10:16/mi
3:07:27
↑ 181↓ 1480.2%
20M
10:23/mi
3:21:33
↑ 64↓ 500.2%
21M
12:14/mi
3:33:47
↑ 106↓ 241.6%
35K· 21.75 mi
10:19/mi
3:41:30
↑ 17↓ 861.7%
23M
10:26/mi
3:54:34
↑ 23↓ 630.6%
24M
10:30/mi
4:05:04
↓ 821.3%
40K· 24.85 mi
10:14/mi
4:13:49
↓ 200.3%
25.2M
10:18/mi
4:17:22
↑ 13↓ 160.2%
Finish· 26.22 mi
9:03/mi
4:26:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:02
Pace9:55 /mi
2nd Half
Distance13.11 mi
Time2:16:33
Pace10:25 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1531:1910:0531:19
10:05
-
10K
6.21 mi12:18:541:00:589:4929:39
9:33
-0:32
15K
9.32 mi12:50:461:32:509:5831:52
10:15
+0:42
20K
12.43 mi13:21:252:03:299:5630:39
9:52
-0:23
Half
13.11 mi13:27:582:10:029:556:33
9:36
-0:16
25K
15.53 mi13:53:302:35:3410:0125:32
10:32
+0:56
30K
18.64 mi14:25:233:07:2710:0331:53
10:16
-0:16
20M
20.00 mi14:39:293:21:3310:0514:06
10:23
+0:07
21M
21.00 mi14:51:433:33:4710:1112:14
12:14
+1:51
35K
21.75 mi14:59:263:41:3010:117:43
10:19
-1:55
23M
23.00 mi15:12:303:54:3410:1213:04
10:26
+0:07
24M
24.00 mi15:23:004:05:0410:1310:30
10:30
+0:04
40K
24.85 mi15:31:454:13:4910:138:45
10:14
-0:16
25.2M
25.20 mi15:35:184:17:2210:133:33
10:18
+0:04
Finish
26.22 mi15:44:314:26:3510:109:13
9:03
-1:15

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

9:03 /mi

Average Pace

10:10 /mi

Slowest Pace

12:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:04

29% of race

Time at Steady Pace

2:58:17

67% of race

Time at Slower Pace

12:14

5% of race

Average Pace: 10:10 /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 mi11:49:1531:1910:0531:19
10:05
#23631
10K
6.21 mi12:18:541:00:589:4929:39
9:33
#23193
15K
9.32 mi12:50:461:32:509:5831:52
10:15
#23522
20K
12.43 mi13:21:252:03:299:5630:39
9:52
#23293
Half
13.11 mi13:27:582:10:029:556:33
9:36
#23241
25K
15.53 mi13:53:302:35:3410:0125:32
10:32
#23229
30K
18.64 mi14:25:233:07:2710:0331:53
10:16
#22925
20M
20.00 mi14:39:293:21:3310:0514:06
10:23
#22796
21M
21.00 mi14:51:433:33:4710:1112:14
12:14
#22840
35K
21.75 mi14:59:263:41:3010:117:43
10:19
#22804
23M
23.00 mi15:12:303:54:3410:1213:04
10:26
#22707
24M
24.00 mi15:23:004:05:0410:1310:30
10:30
#22657
40K
24.85 mi15:31:454:13:4910:138:45
10:14
#22606
25.2M
25.20 mi15:35:184:17:2210:133:33
10:18
#22558
Finish
26.22 mi15:44:314:26:3510:109:13
9:03
#22434
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi236319716971623998(Top 90%)9887(Top 87%)9887(Top 526%)
10K6.21 mi3.10 mi23193+4389465+2519465+25122641(Top 85%)9167(Top 80%)9167(Top 488%)
15K9.32 mi3.11 mi23522-3299625-1609625-16023998(Top 90%)9887(Top 87%)9887(Top 526%)
20K12.43 mi3.11 mi23293+2299507+1189507+11822566(Top 85%)9122(Top 80%)9122(Top 486%)
Half13.11 mi0.68 mi23241+529481+269481+2622411(Top 84%)9019(Top 79%)9019(Top 480%)
25K15.53 mi2.42 mi23229+129472+99472+923247(Top 87%)9520(Top 83%)9520(Top 507%)
30K18.64 mi3.11 mi22925+3049343+1299343+12921701(Top 82%)8741(Top 77%)8741(Top 465%)
20M20.00 mi1.36 mi22796+1299287+569287+5621477(Top 81%)8689(Top 76%)8689(Top 463%)
21M21.00 mi1.00 mi22840-449320-339320-3323103(Top 87%)9598(Top 84%)9598(Top 511%)
35K21.75 mi0.75 mi22804+369310+109310+1022048(Top 83%)9079(Top 79%)9079(Top 483%)
23M23.00 mi1.25 mi22707+979271+399271+3921175(Top 80%)8618(Top 75%)8618(Top 459%)
24M24.00 mi1.00 mi22657+509248+239248+2322050(Top 83%)9126(Top 80%)9126(Top 486%)
40K24.85 mi0.85 mi22606+519231+179231+1720602(Top 77%)8387(Top 73%)8387(Top 447%)
25.2M25.20 mi0.35 mi22558+489209+229209+2218527(Top 70%)7260(Top 64%)7260(Top 387%)
Finish26.22 mi1.02 mi22434+1249145+649145+6418236(Top 68%)7043(Top 62%)7043(Top 375%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23998

Females

9887

F40-44

9887

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

22641

Females

9167

F40-44

9167

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23998

Females

9887

F40-44

9887

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22566

Females

9122

F40-44

9122

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

22411

Females

9019

F40-44

9019

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23247

Females

9520

F40-44

9520

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21701

Females

8741

F40-44

8741

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

21477

Females

8689

F40-44

8689

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

23103

Females

9598

F40-44

9598

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

22048

Females

9079

F40-44

9079

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21175

Females

8618

F40-44

8618

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

22050

Females

9126

F40-44

9126

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20602

Females

8387

F40-44

8387

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18527

Females

7260

F40-44

7260

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

18236

Females

7043

F40-44

7043

Passing Analysis

Category:
Athletes Passed
1919
Passed By
722
Net Change
+1197
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23631
5K → 10K50466+438#23631#23193
10K → 15K40369-329#23193#23522
15K → 20K26637+229#23522#23293
20K → Half608+52#23293#23241
Half → 25K10391+12#23241#23229
25K → 30K31612+304#23229#22925
30K → 20M14011+129#22925#22796
20M → 21M3579-44#22796#22840
21M → 35K5317+36#22840#22804
35K → 23M1058+97#22804#22707
23M → 24M6515+50#22707#22657
24M → 40K565+51#22657#22606
40K → 25.2M491+48#22606#22558
25.2M → Finish1273+124#22558#22434
TOTALS1919722+1197
📊

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