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BOSTON MARATHON 2023

Marta Ziobro

Bib: 17135•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 29%
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
7:19/mi
22:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
45:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:09:22
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:33:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:38:11
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:56:44
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:21:15
↑ 181↓ 1480.2%
20M
7:51/mi
2:31:55
↑ 64↓ 500.2%
21M
8:24/mi
2:40:19
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:45:54
↑ 17↓ 861.7%
23M
7:57/mi
2:55:51
↑ 23↓ 630.6%
24M
7:37/mi
3:03:28
↓ 821.3%
40K· 24.85 mi
7:51/mi
3:10:11
↓ 200.3%
25.2M
8:30/mi
3:13:07
↑ 13↓ 160.2%
Finish· 26.22 mi
7:50/mi
3:21:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:11
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:42:55
Pace7:51 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:0922:447:1922:44
7:19
-
10K
6.21 mi11:36:1945:547:2323:10
7:27
+0:08
15K
9.32 mi11:59:471:09:227:2723:28
7:33
+0:06
20K
12.43 mi12:23:311:33:067:2923:44
7:38
+0:05
Half
13.11 mi12:28:361:38:117:295:05
7:27
-0:11
25K
15.53 mi12:47:091:56:447:3118:33
7:39
+0:12
30K
18.64 mi13:11:402:21:157:3524:31
7:53
+0:14
20M
20.00 mi13:22:202:31:557:3610:40
7:51
-0:02
21M
21.00 mi13:30:442:40:197:388:24
8:24
+0:33
35K
21.75 mi13:36:192:45:547:385:35
7:28
-0:56
23M
23.00 mi13:46:162:55:517:399:57
7:57
+0:29
24M
24.00 mi13:53:533:03:287:397:37
7:37
-0:20
40K
24.85 mi14:00:363:10:117:396:43
7:51
+0:14
25.2M
25.20 mi14:03:323:13:077:402:56
8:30
+0:39
Finish
26.22 mi14:11:313:21:067:417:59
7:50
-0:40

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

7:19 /mi

Average Pace

7:41 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:09:46

94% of race

Time at Steady Pace

11:20

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:40 /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 mi11:13:0922:447:1922:44
7:19
#8230
10K
6.21 mi11:36:1945:547:2323:10
7:27
#9094
15K
9.32 mi11:59:471:09:227:2723:28
7:33
#9556
20K
12.43 mi12:23:311:33:067:2923:44
7:38
#9756
Half
13.11 mi12:28:361:38:117:295:05
7:27
#9766
25K
15.53 mi12:47:091:56:447:3118:33
7:39
#9777
30K
18.64 mi13:11:402:21:157:3524:31
7:53
#9797
20M
20.00 mi13:22:202:31:557:3610:40
7:51
#9708
21M
21.00 mi13:30:442:40:197:388:24
8:24
#9702
35K
21.75 mi13:36:192:45:547:385:35
7:28
#9631
23M
23.00 mi13:46:162:55:517:399:57
7:57
#9578
24M
24.00 mi13:53:533:03:287:397:37
7:37
#9525
40K
24.85 mi14:00:363:10:117:396:43
7:51
#9454
25.2M
25.20 mi14:03:323:13:077:402:56
8:30
#9435
Finish
26.22 mi14:11:313:21:067:417:59
7:50
#9476
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi82301101110110615(Top 40%)2140(Top 19%)2140(Top 44%)
10K6.21 mi3.10 mi9094-8641453-3521453-35210137(Top 38%)1885(Top 17%)1885(Top 39%)
15K9.32 mi3.11 mi9556-4621641-1881641-18810615(Top 40%)2140(Top 19%)2140(Top 44%)
20K12.43 mi3.11 mi9756-2001732-911732-9110419(Top 39%)2100(Top 18%)2100(Top 43%)
Half13.11 mi0.68 mi9766-101736-41736-49880(Top 37%)1835(Top 16%)1835(Top 38%)
25K15.53 mi2.42 mi9777-111753-171753-179921(Top 37%)1967(Top 17%)1967(Top 40%)
30K18.64 mi3.11 mi9797-201801-481801-4810072(Top 38%)2193(Top 19%)2193(Top 45%)
20M20.00 mi1.36 mi9708+891796+51796+59245(Top 35%)1904(Top 17%)1904(Top 39%)
21M21.00 mi1.00 mi9702+61802-61802-69869(Top 37%)2315(Top 20%)2315(Top 47%)
35K21.75 mi0.75 mi9631+711794+81794+88329(Top 31%)1631(Top 14%)1631(Top 33%)
23M23.00 mi1.25 mi9578+531808-141808-149409(Top 35%)2218(Top 19%)2218(Top 45%)
24M24.00 mi1.00 mi9525+531807+11807+18545(Top 32%)1897(Top 17%)1897(Top 39%)
40K24.85 mi0.85 mi9454+711813-61813-69065(Top 34%)2197(Top 19%)2197(Top 45%)
25.2M25.20 mi0.35 mi9435+191815-21815-29613(Top 36%)2496(Top 22%)2496(Top 51%)
Finish26.22 mi1.02 mi9476-411857-421857-4210947(Top 41%)3155(Top 28%)3155(Top 65%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10615

Females

2140

F18-39

2140

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10137

Females

1885

F18-39

1885

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10615

Females

2140

F18-39

2140

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10419

Females

2100

F18-39

2100

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9880

Females

1835

F18-39

1835

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9921

Females

1967

F18-39

1967

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10072

Females

2193

F18-39

2193

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9245

Females

1904

F18-39

1904

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

9869

Females

2315

F18-39

2315

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8329

Females

1631

F18-39

1631

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9409

Females

2218

F18-39

2218

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

8545

Females

1897

F18-39

1897

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9065

Females

2197

F18-39

2197

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9613

Females

2496

F18-39

2496

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

10947

Females

3155

F18-39

3155

Passing Analysis

Category:
Athletes Passed
1154*
Passed By
2400
Net Change
-1246
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8230
5K → 10K45909-864#8230#9094
10K → 15K44506-462#9094#9556
15K → 20K93293-200#9556#9756
20K → Half3242-10#9756#9766
Half → 25K115126-11#9766#9777
25K → 30K155*175-20#9777#9797
30K → 20M13142+89#9797#9708
20M → 21M7468+6#9708#9702
21M → 35K787+71#9702#9631
35K → 23M12471+53#9631#9578
23M → 24M8835+53#9578#9525
24M → 40K94*23+71#9525#9454
40K → 25.2M3819+19#9454#9435
25.2M → Finish4384-41#9435#9476
TOTALS1154*2400-1246

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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