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BOSTON MARATHON 2023

Marissa Latko

Bib: 12057•F

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 47%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:20
Rank: #15122
Start → 5K
8:09/mi
25:20 split
10K· 6.21 mi
51:06
Rank: #15990 (-868)
5K → 10K
8:18/mi
25:46 split
15K· 9.32 mi
1:18:05
Rank: #17055 (-1065)
10K → 15K
8:41/mi
26:59 split
20K· 12.43 mi
1:43:53
Rank: #16698 (+357)
15K → 20K
8:18/mi
25:48 split
Half· 13.11 mi
1:49:40
Rank: #16734 (-36)
20K → Half
8:29/mi
5:47 split
25K· 15.53 mi
2:09:40
Rank: #16385 (+349)
Half → 25K
8:15/mi
20:00 split
30K· 18.64 mi
2:36:00
Rank: #15926 (+459)
25K → 30K
8:29/mi
26:20 split
20M
2:47:45
Rank: #15803 (+123)
30K → 20M
8:39/mi
11:45 split
21M
2:56:47
Rank: #15654 (+149)
20M → 21M
9:02/mi
9:02 split
35K· 21.75 mi
3:03:04
Rank: #15610 (+44)
21M → 35K
8:24/mi
6:17 split
23M
3:16:27
Rank: #16199 (-589)
35K → 23M
10:41/mi
13:23 split
24M
3:24:47
Rank: #16076 (+123)
23M → 24M
8:20/mi
8:20 split
40K· 24.85 mi
3:32:03
Rank: #15967 (+109)
24M → 40K
8:30/mi
7:16 split
25.2M
3:35:08
Rank: #15898 (+69)
40K → 25.2M
8:56/mi
3:05 split
Finish· 26.22 mi
3:43:16
Rank: #15747 (+151)
25.2M → Finish
7:59/mi
8:08 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:40
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time1:53:36
Pace8:40 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1425:208:0925:20
8:09
-
10K
6.21 mi11:20:0051:068:1325:46
8:18
+0:09
15K
9.32 mi11:46:591:18:058:2326:59
8:41
+0:23
20K
12.43 mi12:12:471:43:538:2225:48
8:18
-0:23
Half
13.11 mi12:18:341:49:408:225:47
8:29
+0:11
25K
15.53 mi12:38:342:09:408:2120:00
8:15
-0:14
30K
18.64 mi13:04:542:36:008:2226:20
8:29
+0:14
20M
20.00 mi13:16:392:47:458:2311:45
8:39
+0:10
21M
21.00 mi13:25:412:56:478:259:02
9:02
+0:23
35K
21.75 mi13:31:583:03:048:256:17
8:24
-0:38
23M
23.00 mi13:45:213:16:278:3213:23
10:41
+2:17
24M
24.00 mi13:53:413:24:478:328:20
8:20
-2:21
40K
24.85 mi14:00:573:32:038:327:16
8:30
+0:10
25.2M
25.20 mi14:04:023:35:088:323:05
8:56
+0:26
Finish
26.22 mi14:12:103:43:168:318:08
7:59
-0:57

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

7:59 /mi

Average Pace

8:31 /mi

Slowest Pace

10:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:28

15% of race

Time at Steady Pace

2:44:18

74% of race

Time at Slower Pace

25:30

11% of race

Average Pace: 8:31 /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 mi10:54:1425:208:0925:20
8:09
#15122
10K
6.21 mi11:20:0051:068:1325:46
8:18
#15990
15K
9.32 mi11:46:591:18:058:2326:59
8:41
#17055
20K
12.43 mi12:12:471:43:538:2225:48
8:18
#16698
Half
13.11 mi12:18:341:49:408:225:47
8:29
#16734
25K
15.53 mi12:38:342:09:408:2120:00
8:15
#16385
30K
18.64 mi13:04:542:36:008:2226:20
8:29
#15926
20M
20.00 mi13:16:392:47:458:2311:45
8:39
#15803
21M
21.00 mi13:25:412:56:478:259:02
9:02
#15654
35K
21.75 mi13:31:583:03:048:256:17
8:24
#15610
23M
23.00 mi13:45:213:16:278:3213:23
10:41
#16199
24M
24.00 mi13:53:413:24:478:328:20
8:20
#16076
40K
24.85 mi14:00:573:32:038:327:16
8:30
#15967
25.2M
25.20 mi14:04:023:35:088:323:05
8:56
#15898
Finish
26.22 mi14:12:103:43:168:318:08
7:59
#15747
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi151224726472618901(Top 71%)7041(Top 62%)7041(Top 144%)
10K6.21 mi3.10 mi15990-8685276-5505276-55016896(Top 63%)5809(Top 51%)5809(Top 119%)
15K9.32 mi3.11 mi17055-10655938-6625938-66218901(Top 71%)7041(Top 62%)7041(Top 144%)
20K12.43 mi3.11 mi16698+3575735+2035735+20315643(Top 59%)5123(Top 45%)5123(Top 105%)
Half13.11 mi0.68 mi16734-365766-315766-3117590(Top 66%)6227(Top 55%)6227(Top 127%)
25K15.53 mi2.42 mi16385+3495565+2015565+20114610(Top 55%)4598(Top 40%)4598(Top 94%)
30K18.64 mi3.11 mi15926+4595328+2375328+23714174(Top 53%)4440(Top 39%)4440(Top 91%)
20M20.00 mi1.36 mi15803+1235274+545274+5414579(Top 55%)4757(Top 42%)4757(Top 97%)
21M21.00 mi1.00 mi15654+1495215+595215+5913636(Top 51%)4292(Top 38%)4292(Top 88%)
35K21.75 mi0.75 mi15610+445204+115204+1114765(Top 55%)4979(Top 44%)4979(Top 102%)
23M23.00 mi1.25 mi16199-5895557-3535557-35321732(Top 82%)8922(Top 78%)8922(Top 183%)
24M24.00 mi1.00 mi16076+1235510+475510+4713485(Top 51%)4395(Top 38%)4395(Top 90%)
40K24.85 mi0.85 mi15967+1095460+505460+5013380(Top 50%)4416(Top 39%)4416(Top 90%)
25.2M25.20 mi0.35 mi15898+695424+365424+3612285(Top 46%)3898(Top 34%)3898(Top 80%)
Finish26.22 mi1.02 mi15747+1515343+815343+8112042(Top 45%)3740(Top 33%)3740(Top 77%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18901

Females

7041

F18-39

7041

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

16896

Females

5809

F18-39

5809

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18901

Females

7041

F18-39

7041

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15643

Females

5123

F18-39

5123

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

17590

Females

6227

F18-39

6227

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

14610

Females

4598

F18-39

4598

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14174

Females

4440

F18-39

4440

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14579

Females

4757

F18-39

4757

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

13636

Females

4292

F18-39

4292

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

14765

Females

4979

F18-39

4979

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

21732

Females

8922

F18-39

8922

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13485

Females

4395

F18-39

4395

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13380

Females

4416

F18-39

4416

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12285

Females

3898

F18-39

3898

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12042

Females

3740

F18-39

3740

Passing Analysis

Category:
Athletes Passed
2200
Passed By
2825
Net Change
-625
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15122
5K → 10K62930-868#15122#15990
10K → 15K131078-1065#15990#17055
15K → 20K39538+357#17055#16698
20K → Half1854-36#16698#16734
Half → 25K36011+349#16734#16385
25K → 30K47011+459#16385#15926
30K → 20M15633+123#15926#15803
20M → 21M17526+149#15803#15654
21M → 35K6319+44#15654#15610
35K → 23M6595-589#15610#16199
23M → 24M1329+123#16199#16076
24M → 40K12112+109#16076#15967
40K → 25.2M723+69#15967#15898
25.2M → Finish1576+151#15898#15747
TOTALS22002825-625
📊

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