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BOSTON MARATHON 2023

Katarina Tomtlund

Bib: 27594•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
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
10:35/mi
32:52
↑ 97↓ 3451.5%
10K· 6.21 mi
11:16/mi
1:07:51
↑ 79↓ 1380.4%
15K· 9.32 mi
11:57/mi
1:44:59
↑ 67↓ 78
20K· 12.43 mi
13:06/mi
2:25:40
↑ 106↓ 860.1%
Half· 13.11 mi
11:49/mi
2:33:44
↑ 19↓ 370.5%
25K· 15.53 mi
12:52/mi
3:04:55
↑ 66↓ 880.2%
30K· 18.64 mi
12:49/mi
3:44:43
↑ 181↓ 1480.2%
20M
13:19/mi
4:02:49
↑ 64↓ 500.2%
21M
14:13/mi
4:17:02
↑ 106↓ 241.6%
35K· 21.75 mi
12:42/mi
4:26:32
↑ 17↓ 861.7%
23M
13:23/mi
4:43:18
↑ 23↓ 630.6%
24M
12:49/mi
4:56:07
↓ 821.3%
40K· 24.85 mi
14:22/mi
5:08:24
↓ 200.3%
25.2M
13:35/mi
5:13:05
↑ 13↓ 160.2%
Finish· 26.22 mi
13:01/mi
5:26:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:33:44
Pace11:44 /mi
2nd Half
Distance13.11 mi
Time2:52:37
Pace13:10 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2132:5210:3532:52
10:35
-
10K
6.21 mi12:25:201:07:5110:5534:59
11:16
+0:41
15K
9.32 mi13:02:281:44:5911:1637:08
11:57
+0:41
20K
12.43 mi13:43:092:25:4011:4340:41
13:06
+1:09
Half
13.11 mi13:51:132:33:4411:448:04
11:49
-1:17
25K
15.53 mi14:22:243:04:5511:5431:11
12:52
+1:03
30K
18.64 mi15:02:123:44:4312:0339:48
12:49
-0:03
20M
20.00 mi15:20:184:02:4912:0818:06
13:19
+0:30
21M
21.00 mi15:34:314:17:0212:1414:13
14:13
+0:54
35K
21.75 mi15:44:014:26:3212:159:30
12:42
-1:31
23M
23.00 mi16:00:474:43:1812:1916:46
13:23
+0:41
24M
24.00 mi16:13:364:56:0712:2012:49
12:49
-0:34
40K
24.85 mi16:25:535:08:2412:2412:17
14:22
+1:33
25.2M
25.20 mi16:30:345:13:0512:254:41
13:35
-0:47
Finish
26.22 mi16:43:505:26:2112:2713:16
13:01
-0:34

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

10:35 /mi

Average Pace

12:27 /mi

Slowest Pace

14:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:03

35% of race

Time at Steady Pace

2:45:21

51% of race

Time at Slower Pace

47:57

15% of race

Average Pace: 12:27 /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 mi11:50:2132:5210:3532:52
10:35
#24904
10K
6.21 mi12:25:201:07:5110:5534:59
11:16
#25478
15K
9.32 mi13:02:281:44:5911:1637:08
11:57
#25759
20K
12.43 mi13:43:092:25:4011:4340:41
13:06
#25974
Half
13.11 mi13:51:132:33:4411:448:04
11:49
#25952
25K
15.53 mi14:22:243:04:5511:5431:11
12:52
#25935
30K
18.64 mi15:02:123:44:4312:0339:48
12:49
#25834
20M
20.00 mi15:20:184:02:4912:0818:06
13:19
#25804
21M
21.00 mi15:34:314:17:0212:1414:13
14:13
#25789
35K
21.75 mi15:44:014:26:3212:159:30
12:42
#25781
23M
23.00 mi16:00:474:43:1812:1916:46
13:23
#25770
24M
24.00 mi16:13:364:56:0712:2012:49
12:49
#25757
40K
24.85 mi16:25:535:08:2412:2412:17
14:22
#25777
25.2M
25.20 mi16:30:345:13:0512:254:41
13:35
#25771
Finish
26.22 mi16:43:505:26:2112:2713:16
13:01
#25781
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi24904103871038726024(Top 98%)11052(Top 97%)11052(Top 1356%)
10K6.21 mi3.10 mi25478-57410720-33310720-33325747(Top 97%)10877(Top 95%)10877(Top 1335%)
15K9.32 mi3.11 mi25759-28110889-16910889-16926024(Top 98%)11052(Top 97%)11052(Top 1356%)
20K12.43 mi3.11 mi25974-21511022-13311022-13326271(Top 99%)11216(Top 98%)11216(Top 1376%)
Half13.11 mi0.68 mi25952+2211006+1611006+1625754(Top 97%)10929(Top 96%)10929(Top 1341%)
25K15.53 mi2.42 mi25935+1711008-211008-225792(Top 97%)10957(Top 96%)10957(Top 1344%)
30K18.64 mi3.11 mi25834+10110956+5210956+5225264(Top 95%)10717(Top 94%)10717(Top 1315%)
20M20.00 mi1.36 mi25804+3010949+710949+725429(Top 96%)10818(Top 95%)10818(Top 1327%)
21M21.00 mi1.00 mi25789+1510940+910940+925226(Top 95%)10725(Top 94%)10725(Top 1316%)
35K21.75 mi0.75 mi25781+810939+110939+125350(Top 95%)10841(Top 95%)10841(Top 1330%)
23M23.00 mi1.25 mi25770+11109391093925437(Top 96%)10863(Top 95%)10863(Top 1333%)
24M24.00 mi1.00 mi25757+1310932+710932+725352(Top 95%)10851(Top 95%)10851(Top 1331%)
40K24.85 mi0.85 mi25777-2010950-1810950-1825891(Top 97%)11126(Top 97%)11126(Top 1365%)
25.2M25.20 mi0.35 mi25771+610948+210948+224628(Top 93%)10507(Top 92%)10507(Top 1289%)
Finish26.22 mi1.02 mi25781-1010957-910957-925983(Top 98%)11162(Top 98%)11162(Top 1370%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

26024

Females

11052

F55-59

11052

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

25747

Females

10877

F55-59

10877

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

26024

Females

11052

F55-59

11052

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26271

Females

11216

F55-59

11216

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

25754

Females

10929

F55-59

10929

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

25792

Females

10957

F55-59

10957

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

25264

Females

10717

F55-59

10717

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25429

Females

10818

F55-59

10818

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

25226

Females

10725

F55-59

10725

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25350

Females

10841

F55-59

10841

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

25437

Females

10863

F55-59

10863

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

25352

Females

10851

F55-59

10851

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25891

Females

11126

F55-59

11126

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24628

Females

10507

F55-59

10507

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

25983

Females

11162

F55-59

11162

Passing Analysis

Category:
Athletes Passed
401
Passed By
1278
Net Change
-877
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24904
5K → 10K34608-574#24904#25478
10K → 15K24305-281#25478#25759
15K → 20K8223-215#25759#25974
20K → Half264+22#25974#25952
Half → 25K4730+17#25952#25935
25K → 30K1076+101#25935#25834
30K → 20M4515+30#25834#25804
20M → 21M2611+15#25804#25789
21M → 35K179+8#25789#25781
35K → 23M198+11#25781#25770
23M → 24M207+13#25770#25757
24M → 40K1131-20#25757#25777
40K → 25.2M93+6#25777#25771
25.2M → Finish818-10#25771#25781
TOTALS4011278-877
📊

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