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BOSTON MARATHON 2023

Sofie Rummens

Bib: 27934•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
9:26/mi
29:17
↑ 97↓ 3451.5%
10K· 6.21 mi
9:22/mi
58:22
↑ 79↓ 1380.4%
15K· 9.32 mi
9:49/mi
1:28:52
↑ 67↓ 78
20K· 12.43 mi
10:01/mi
2:00:00
↑ 106↓ 860.1%
Half· 13.11 mi
10:02/mi
2:06:51
↑ 19↓ 370.5%
25K· 15.53 mi
10:34/mi
2:32:27
↑ 66↓ 880.2%
30K· 18.64 mi
11:15/mi
3:07:25
↑ 181↓ 1480.2%
20M
12:14/mi
3:24:03
↑ 64↓ 500.2%
21M
13:30/mi
3:37:33
↑ 106↓ 241.6%
35K· 21.75 mi
11:10/mi
3:45:54
↑ 17↓ 861.7%
23M
12:21/mi
4:01:22
↑ 23↓ 630.6%
24M
10:47/mi
4:12:09
↓ 821.3%
40K· 24.85 mi
11:03/mi
4:21:36
↓ 200.3%
25.2M
15:48/mi
4:27:03
↑ 13↓ 160.2%
Finish· 26.22 mi
10:51/mi
4:38:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:51
Pace9:41 /mi
2nd Half
Distance13.11 mi
Time2:31:15
Pace11:32 /mi
📊Positive Split: 19.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2429:179:2629:17
9:26
-
10K
6.21 mi11:48:2958:229:2429:05
9:22
-0:04
15K
9.32 mi12:18:591:28:529:3230:30
9:49
+0:27
20K
12.43 mi12:50:072:00:009:3931:08
10:01
+0:12
Half
13.11 mi12:56:582:06:519:416:51
10:02
+0:01
25K
15.53 mi13:22:342:32:279:4925:36
10:34
+0:32
30K
18.64 mi13:57:323:07:2510:0334:58
11:15
+0:41
20M
20.00 mi14:14:103:24:0310:1216:38
12:14
+0:59
21M
21.00 mi14:27:403:37:3310:2213:30
13:30
+1:16
35K
21.75 mi14:36:013:45:5410:238:21
11:10
-2:20
23M
23.00 mi14:51:294:01:2210:3015:28
12:21
+1:11
24M
24.00 mi15:02:164:12:0910:3010:47
10:47
-1:34
40K
24.85 mi15:11:434:21:3610:329:27
11:03
+0:16
25.2M
25.20 mi15:17:104:27:0310:365:27
15:48
+4:45
Finish
26.22 mi15:28:134:38:0610:3711:03
10:51
-4:57

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

9:22 /mi

Average Pace

10:37 /mi

Slowest Pace

15:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:00

43% of race

Time at Steady Pace

1:47:03

38% of race

Time at Slower Pace

51:03

18% of race

Average Pace: 10:36 /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 mi11:19:2429:179:2629:17
9:26
#21870
10K
6.21 mi11:48:2958:229:2429:05
9:22
#22031
15K
9.32 mi12:18:591:28:529:3230:30
9:49
#22411
20K
12.43 mi12:50:072:00:009:3931:08
10:01
#22570
Half
13.11 mi12:56:582:06:519:416:51
10:02
#22618
25K
15.53 mi13:22:342:32:279:4925:36
10:34
#22755
30K
18.64 mi13:57:323:07:2510:0334:58
11:15
#22916
20M
20.00 mi14:14:103:24:0310:1216:38
12:14
#23091
21M
21.00 mi14:27:403:37:3310:2213:30
13:30
#23220
35K
21.75 mi14:36:013:45:5410:238:21
11:10
#23220
23M
23.00 mi14:51:294:01:2210:3015:28
12:21
#23329
24M
24.00 mi15:02:164:12:0910:3010:47
10:47
#23306
40K
24.85 mi15:11:434:21:3610:329:27
11:03
#23277
25.2M
25.20 mi15:17:104:27:0310:365:27
15:48
#23367
Finish
26.22 mi15:28:134:38:0610:3711:03
10:51
#23375
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi218708822882223095(Top 87%)9396(Top 82%)9396(Top 517%)
10K6.21 mi3.10 mi22031-1618871-498871-4922114(Top 83%)8884(Top 78%)8884(Top 489%)
15K9.32 mi3.11 mi22411-3809048-1779048-17723095(Top 87%)9396(Top 82%)9396(Top 517%)
20K12.43 mi3.11 mi22570-1599125-779125-7722968(Top 86%)9339(Top 82%)9339(Top 514%)
Half13.11 mi0.68 mi22618-489149-249149-2423380(Top 88%)9563(Top 84%)9563(Top 526%)
25K15.53 mi2.42 mi22755-1379233-849233-8423291(Top 87%)9552(Top 84%)9552(Top 526%)
30K18.64 mi3.11 mi22916-1619337-1049337-10423508(Top 88%)9737(Top 85%)9737(Top 536%)
20M20.00 mi1.36 mi23091-1759445-1089445-10824481(Top 92%)10327(Top 90%)10327(Top 568%)
21M21.00 mi1.00 mi23220-1299518-739518-7324584(Top 92%)10387(Top 91%)10387(Top 572%)
35K21.75 mi0.75 mi232209526-89526-823594(Top 89%)9933(Top 87%)9933(Top 547%)
23M23.00 mi1.25 mi23329-1099595-699595-6924440(Top 92%)10356(Top 91%)10356(Top 570%)
24M24.00 mi1.00 mi23306+239583+129583+1222642(Top 85%)9446(Top 83%)9446(Top 520%)
40K24.85 mi0.85 mi23277+299581+29581+222471(Top 84%)9386(Top 82%)9386(Top 517%)
25.2M25.20 mi0.35 mi23367-909639-589639-5826052(Top 98%)11186(Top 98%)11186(Top 616%)
Finish26.22 mi1.02 mi23375-89650-119650-1123697(Top 89%)10008(Top 88%)10008(Top 551%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23095

Females

9396

F45-49

9396

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

22114

Females

8884

F45-49

8884

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23095

Females

9396

F45-49

9396

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

22968

Females

9339

F45-49

9339

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

23380

Females

9563

F45-49

9563

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23291

Females

9552

F45-49

9552

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23508

Females

9737

F45-49

9737

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

24481

Females

10327

F45-49

10327

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

24584

Females

10387

F45-49

10387

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

23594

Females

9933

F45-49

9933

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

24440

Females

10356

F45-49

10356

23M→24M

23.0 - 24.0 mi

Top 85%
×6story building
+12ft-82ft

Overall

22642

Females

9446

F45-49

9446

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

22471

Females

9386

F45-49

9386

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26052

Females

11186

F45-49

11186

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

23697

Females

10008

F45-49

10008

Passing Analysis

Category:
Athletes Passed
684
Passed By
2189
Net Change
-1505
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21870
5K → 10K175336-161#21870#22031
10K → 15K64444-380#22031#22411
15K → 20K83242-159#22411#22570
20K → Half1765-48#22570#22618
Half → 25K59196-137#22618#22755
25K → 30K63224-161#22755#22916
30K → 20M28203-175#22916#23091
20M → 21M13142-129#23091#23220
21M → 35K32320#23220#23220
35K → 23M19128-109#23220#23329
23M → 24M4320+23#23329#23306
24M → 40K5324+29#23306#23277
40K → 25.2M393-90#23277#23367
25.2M → Finish3240-8#23367#23375
TOTALS6842189-1505
📊

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