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BOSTON MARATHON 2023

Kobi Tobin

Bib: 12216•F

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 29%
Gender (Female)
#0 / 11423
Top 10%
Division (F18-39)
#0 / 4884
Top 19%
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
7:26/mi
23:05
↑ 97↓ 3451.5%
10K· 6.21 mi
7:19/mi
45:49
↑ 79↓ 1380.4%
15K· 9.32 mi
7:21/mi
1:08:40
↑ 67↓ 78
20K· 12.43 mi
7:27/mi
1:31:49
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:36:50
↑ 19↓ 370.5%
25K· 15.53 mi
7:23/mi
1:54:45
↑ 66↓ 880.2%
30K· 18.64 mi
7:31/mi
2:18:05
↑ 181↓ 1480.2%
20M
7:30/mi
2:28:17
↑ 64↓ 500.2%
21M
7:51/mi
2:36:08
↑ 106↓ 241.6%
35K· 21.75 mi
7:21/mi
2:41:38
↑ 17↓ 861.7%
23M
7:34/mi
2:51:06
↑ 23↓ 630.6%
24M
7:17/mi
2:58:23
↓ 821.3%
40K· 24.85 mi
7:22/mi
3:04:41
↓ 200.3%
25.2M
7:58/mi
3:07:26
↑ 13↓ 160.2%
Finish· 26.22 mi
7:10/mi
3:14:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:50
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:37:54
Pace7:28 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2723:057:2623:05
7:26
-
10K
6.21 mi11:13:1145:497:2222:44
7:19
-0:07
15K
9.32 mi11:36:021:08:407:2222:51
7:21
+0:02
20K
12.43 mi11:59:111:31:497:2323:09
7:27
+0:06
Half
13.11 mi12:04:121:36:507:235:01
7:21
-0:06
25K
15.53 mi12:22:071:54:457:2317:55
7:23
+0:02
30K
18.64 mi12:45:272:18:057:2423:20
7:31
+0:08
20M
20.00 mi12:55:392:28:177:2510:12
7:30
-0:01
21M
21.00 mi13:03:302:36:087:267:51
7:51
+0:21
35K
21.75 mi13:09:002:41:387:265:30
7:21
-0:30
23M
23.00 mi13:18:282:51:067:269:28
7:34
+0:13
24M
24.00 mi13:25:452:58:237:267:17
7:17
-0:17
40K
24.85 mi13:32:033:04:417:266:18
7:22
+0:05
25.2M
25.20 mi13:34:483:07:267:262:45
7:58
+0:36
Finish
26.22 mi13:42:063:14:447:267:18
7:10
-0:48

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

7:10 /mi

Average Pace

7:26 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:59

99% of race

Time at Steady Pace

2:45

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi10:50:2723:057:2623:05
7:26
#9070
10K
6.21 mi11:13:1145:497:2222:44
7:19
#8994
15K
9.32 mi11:36:021:08:407:2222:51
7:21
#8961
20K
12.43 mi11:59:111:31:497:2323:09
7:27
#8907
Half
13.11 mi12:04:121:36:507:235:01
7:21
#8905
25K
15.53 mi12:22:071:54:457:2317:55
7:23
#8734
30K
18.64 mi12:45:272:18:057:2423:20
7:31
#8413
20M
20.00 mi12:55:392:28:177:2510:12
7:30
#8273
21M
21.00 mi13:03:302:36:087:267:51
7:51
#8154
35K
21.75 mi13:09:002:41:387:265:30
7:21
#8114
23M
23.00 mi13:18:282:51:067:269:28
7:34
#7995
24M
24.00 mi13:25:452:58:237:267:17
7:17
#7891
40K
24.85 mi13:32:033:04:417:266:18
7:22
#7786
25.2M
25.20 mi13:34:483:07:267:262:45
7:58
#7745
Finish
26.22 mi13:42:063:14:447:267:18
7:10
#7662
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9070141714178984(Top 34%)1439(Top 13%)1439(Top 29%)
10K6.21 mi3.10 mi8994+761408+91408+98991(Top 34%)1401(Top 12%)1401(Top 29%)
15K9.32 mi3.11 mi8961+331415-71415-78984(Top 34%)1439(Top 13%)1439(Top 29%)
20K12.43 mi3.11 mi8907+541399+161399+168928(Top 34%)1451(Top 13%)1451(Top 30%)
Half13.11 mi0.68 mi8905+21405-61405-69059(Top 34%)1483(Top 13%)1483(Top 30%)
25K15.53 mi2.42 mi8734+1711347+581347+587952(Top 30%)1165(Top 10%)1165(Top 24%)
30K18.64 mi3.11 mi8413+3211271+761271+767302(Top 27%)1040(Top 9%)1040(Top 21%)
20M20.00 mi1.36 mi8273+1401240+311240+316843(Top 26%)968(Top 8%)968(Top 20%)
21M21.00 mi1.00 mi8154+1191212+281212+286480(Top 24%)944(Top 8%)944(Top 19%)
35K21.75 mi0.75 mi8114+401208+41208+47514(Top 28%)1306(Top 11%)1306(Top 27%)
23M23.00 mi1.25 mi7995+1191187+211187+216828(Top 26%)1111(Top 10%)1111(Top 23%)
24M24.00 mi1.00 mi7891+1041164+231164+236298(Top 24%)1017(Top 9%)1017(Top 21%)
40K24.85 mi0.85 mi7786+1051145+191145+195926(Top 22%)957(Top 8%)957(Top 20%)
25.2M25.20 mi0.35 mi7745+411139+61139+66413(Top 24%)1197(Top 10%)1197(Top 25%)
Finish26.22 mi1.02 mi7662+831133+61133+66214(Top 23%)1138(Top 10%)1138(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

8984

Females

1439

F18-39

1439

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

8991

Females

1401

F18-39

1401

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

8984

Females

1439

F18-39

1439

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

8928

Females

1451

F18-39

1451

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9059

Females

1483

F18-39

1483

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

7952

Females

1165

F18-39

1165

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7302

Females

1040

F18-39

1040

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

6843

Females

968

F18-39

968

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6480

Females

944

F18-39

944

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7514

Females

1306

F18-39

1306

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

6828

Females

1111

F18-39

1111

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6298

Females

1017

F18-39

1017

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5926

Females

957

F18-39

957

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6413

Females

1197

F18-39

1197

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6214

Females

1138

F18-39

1138

Passing Analysis

Category:
Athletes Passed
2089
Passed By
681
Net Change
+1408
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9070
5K → 10K306230+76#9070#8994
10K → 15K162129+33#8994#8961
15K → 20K15197+54#8961#8907
20K → Half2927+2#8907#8905
Half → 25K20332+171#8905#8734
25K → 30K35231+321#8734#8413
30K → 20M1499+140#8413#8273
20M → 21M14122+119#8273#8154
21M → 35K6222+40#8154#8114
35K → 23M14627+119#8114#7995
23M → 24M12016+104#7995#7891
24M → 40K11611+105#7891#7786
40K → 25.2M432+41#7786#7745
25.2M → Finish10926+83#7745#7662
TOTALS2089681+1408
📊

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