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BOSTON MARATHON 2023

Margrethe Joensson

Bib: 27803•F

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
9:33/mi
29:40
↑ 97↓ 3451.5%
10K· 6.21 mi
9:09/mi
58:07
↑ 79↓ 1380.4%
15K· 9.32 mi
9:44/mi
1:28:21
↑ 67↓ 78
20K· 12.43 mi
11:44/mi
2:04:49
↑ 106↓ 860.1%
Half· 13.11 mi
10:42/mi
2:12:07
↑ 19↓ 370.5%
25K· 15.53 mi
11:33/mi
2:40:08
↑ 66↓ 880.2%
30K· 18.64 mi
12:40/mi
3:19:29
↑ 181↓ 1480.2%
20M
12:41/mi
3:36:43
↑ 64↓ 500.2%
21M
14:53/mi
3:51:36
↑ 106↓ 241.6%
35K· 21.75 mi
10:56/mi
3:59:47
↑ 17↓ 861.7%
23M
11:36/mi
4:14:19
↑ 23↓ 630.6%
24M
12:10/mi
4:26:29
↓ 821.3%
40K· 24.85 mi
12:04/mi
4:36:48
↓ 200.3%
25.2M
12:46/mi
4:41:12
↑ 13↓ 160.2%
Finish· 26.22 mi
11:10/mi
4:52:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:07
Pace10:05 /mi
2nd Half
Distance13.11 mi
Time2:40:28
Pace12:14 /mi
📊Positive Split: 21.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:5529:409:3329:40
9:33
-
10K
6.21 mi12:15:2258:079:2128:27
9:09
-0:24
15K
9.32 mi12:45:361:28:219:2930:14
9:44
+0:35
20K
12.43 mi13:22:042:04:4910:0336:28
11:44
+2:00
Half
13.11 mi13:29:222:12:0710:057:18
10:42
-1:02
25K
15.53 mi13:57:232:40:0810:1928:01
11:33
+0:51
30K
18.64 mi14:36:443:19:2910:4239:21
12:40
+1:07
20M
20.00 mi14:53:583:36:4310:5017:14
12:41
+0:01
21M
21.00 mi15:08:513:51:3611:0214:53
14:53
+2:12
35K
21.75 mi15:17:023:59:4711:028:11
10:56
-3:57
23M
23.00 mi15:31:344:14:1911:0314:32
11:36
+0:40
24M
24.00 mi15:43:444:26:2911:0612:10
12:10
+0:34
40K
24.85 mi15:54:034:36:4811:0810:19
12:04
-0:06
25.2M
25.20 mi15:58:274:41:1211:104:24
12:46
+0:42
Finish
26.22 mi16:09:504:52:3511:1011:23
11:10
-1:36

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

9:09 /mi

Average Pace

11:10 /mi

Slowest Pace

14:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:39

33% of race

Time at Steady Pace

2:01:04

41% of race

Time at Slower Pace

1:15:52

26% of race

Average Pace: 11:10 /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 mi11:46:5529:409:3329:40
9:33
#22251
10K
6.21 mi12:15:2258:079:2128:27
9:09
#21897
15K
9.32 mi12:45:361:28:219:2930:14
9:44
#22236
20K
12.43 mi13:22:042:04:4910:0336:28
11:44
#23524
Half
13.11 mi13:29:222:12:0710:057:18
10:42
#23588
25K
15.53 mi13:57:232:40:0810:1928:01
11:33
#23793
30K
18.64 mi14:36:443:19:2910:4239:21
12:40
#24166
20M
20.00 mi14:53:583:36:4310:5017:14
12:41
#24261
21M
21.00 mi15:08:513:51:3611:0214:53
14:53
#24409
35K
21.75 mi15:17:023:59:4711:028:11
10:56
#24363
23M
23.00 mi15:31:344:14:1911:0314:32
11:36
#24317
24M
24.00 mi15:43:444:26:2911:0612:10
12:10
#24348
40K
24.85 mi15:54:034:36:4811:0810:19
12:04
#24348
25.2M
25.20 mi15:58:274:41:1211:104:24
12:46
#24340
Finish
26.22 mi16:09:504:52:3511:1011:23
11:10
#24352
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi222519006900622894(Top 86%)9286(Top 81%)9286(Top 494%)
10K6.21 mi3.10 mi21897+3548793+2138793+21321499(Top 81%)8556(Top 75%)8556(Top 456%)
15K9.32 mi3.11 mi22236-3398958-1658958-16522894(Top 86%)9286(Top 81%)9286(Top 494%)
20K12.43 mi3.11 mi23524-12889624-6669624-66625467(Top 96%)10754(Top 94%)10754(Top 573%)
Half13.11 mi0.68 mi23588-649656-329656-3224533(Top 92%)10230(Top 90%)10230(Top 545%)
25K15.53 mi2.42 mi23793-2059785-1299785-12924741(Top 93%)10365(Top 91%)10365(Top 552%)
30K18.64 mi3.11 mi24166-37310017-23210017-23225149(Top 94%)10652(Top 93%)10652(Top 567%)
20M20.00 mi1.36 mi24261-9510085-6810085-6824903(Top 94%)10552(Top 92%)10552(Top 562%)
21M21.00 mi1.00 mi24409-14810171-8610171-8625663(Top 96%)10931(Top 96%)10931(Top 582%)
35K21.75 mi0.75 mi24363+4610152+1910152+1923210(Top 87%)9703(Top 85%)9703(Top 517%)
23M23.00 mi1.25 mi24317+4610137+1510137+1523433(Top 88%)9821(Top 86%)9821(Top 523%)
24M24.00 mi1.00 mi24348-3110159-2210159-2224729(Top 93%)10544(Top 92%)10544(Top 561%)
40K24.85 mi0.85 mi2434810165-610165-623981(Top 90%)10170(Top 89%)10170(Top 542%)
25.2M25.20 mi0.35 mi24340+810166-110166-123681(Top 89%)10027(Top 88%)10027(Top 534%)
Finish26.22 mi1.02 mi24352-1210180-1410180-1424260(Top 91%)10286(Top 90%)10286(Top 548%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

22894

Females

9286

F40-44

9286

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21499

Females

8556

F40-44

8556

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

22894

Females

9286

F40-44

9286

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

25467

Females

10754

F40-44

10754

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

24533

Females

10230

F40-44

10230

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

24741

Females

10365

F40-44

10365

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

25149

Females

10652

F40-44

10652

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

24903

Females

10552

F40-44

10552

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

25663

Females

10931

F40-44

10931

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

23210

Females

9703

F40-44

9703

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23433

Females

9821

F40-44

9821

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

24729

Females

10544

F40-44

10544

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

23981

Females

10170

F40-44

10170

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23681

Females

10027

F40-44

10027

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

24260

Females

10286

F40-44

10286

Passing Analysis

Category:
Athletes Passed
838
Passed By
2939
Net Change
-2101
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22251
5K → 10K475121+354#22251#21897
10K → 15K67406-339#21897#22236
15K → 20K41292-1288#22236#23524
20K → Half1074-64#23524#23588
Half → 25K27232-205#23588#23793
25K → 30K26399-373#23793#24166
30K → 20M23118-95#24166#24261
20M → 21M9157-148#24261#24409
21M → 35K548+46#24409#24363
35K → 23M6014+46#24363#24317
23M → 24M1950-31#24317#24348
24M → 40K20200#24348#24348
40K → 25.2M2012+8#24348#24340
25.2M → Finish2436-12#24340#24352
TOTALS8382939-2101
📊

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