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BOSTON MARATHON 2023

Shawna Zaharko

Bib: 22807•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 43%
Masters (Masters Women)
#0 / 6539
Top 31%
Division (F50-54)
#0 / 1207
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:53
Rank: #16367
Start → 5K
25:53 | 8:20/mi
10K· 6.21 mi
51:23
Rank: #16292 (+75)
5K → 10K
25:30 | 8:12/mi
15K· 9.32 mi
1:16:40
Rank: #16007 (+285)
10K → 15K
25:17 | 8:08/mi
20K· 12.43 mi
1:42:17
Rank: #15790 (+217)
15K → 20K
25:37 | 8:15/mi
Half· 13.11 mi
1:47:52
Rank: #15776 (+14)
20K → Half
5:35 | 8:11/mi
25K· 15.53 mi
2:07:52
Rank: #15555 (+221)
Half → 25K
20:00 | 8:15/mi
30K· 18.64 mi
2:34:37
Rank: #15433 (+122)
25K → 30K
26:45 | 8:37/mi
20M
2:46:29
Rank: #15406 (+27)
30K → 20M
11:52 | 8:44/mi
21M
2:56:03
Rank: #15415 (-9)
20M → 21M
9:34 | 9:34/mi
35K· 21.75 mi
3:02:14
Rank: #15339 (+76)
21M → 35K
6:11 | 8:16/mi
23M
3:12:55
Rank: #15208 (+131)
35K → 23M
10:41 | 8:32/mi
24M
3:21:15
Rank: #15119 (+89)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:28:33
Rank: #15049 (+70)
24M → 40K
7:18 | 8:32/mi
25.2M
3:31:48
Rank: #15036 (+13)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:40:35
Rank: #15087 (-51)
25.2M → Finish
8:47 | 8:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:52
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time1:52:43
Pace8:36 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1925:538:2025:53
8:20
-
10K
6.21 mi11:45:4951:238:1625:30
8:12
-0:08
15K
9.32 mi12:11:061:16:408:1425:17
8:08
-0:04
20K
12.43 mi12:36:431:42:178:1425:37
8:15
+0:07
Half
13.11 mi12:42:181:47:528:145:35
8:11
-0:04
25K
15.53 mi13:02:182:07:528:1420:00
8:15
+0:04
30K
18.64 mi13:29:032:34:378:1826:45
8:37
+0:22
20M
20.00 mi13:40:552:46:298:1911:52
8:44
+0:07
21M
21.00 mi13:50:292:56:038:239:34
9:34
+0:50
35K
21.75 mi13:56:403:02:148:236:11
8:16
-1:18
23M
23.00 mi14:07:213:12:558:2310:41
8:32
+0:16
24M
24.00 mi14:15:413:21:158:238:20
8:20
-0:12
40K
24.85 mi14:22:593:28:338:237:18
8:32
+0:12
25.2M
25.20 mi14:26:143:31:488:243:15
9:25
+0:53
Finish
26.22 mi14:35:013:40:358:258:47
8:37
-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

8:08 /mi

Average Pace

8:25 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:27:46

94% of race

Time at Steady Pace

12:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:25 /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 mi11:20:1925:538:2025:53
8:20
#16367
10K
6.21 mi11:45:4951:238:1625:30
8:12
#16292
15K
9.32 mi12:11:061:16:408:1425:17
8:08
#16007
20K
12.43 mi12:36:431:42:178:1425:37
8:15
#15790
Half
13.11 mi12:42:181:47:528:145:35
8:11
#15776
25K
15.53 mi13:02:182:07:528:1420:00
8:15
#15555
30K
18.64 mi13:29:032:34:378:1826:45
8:37
#15433
20M
20.00 mi13:40:552:46:298:1911:52
8:44
#15406
21M
21.00 mi13:50:292:56:038:239:34
9:34
#15415
35K
21.75 mi13:56:403:02:148:236:11
8:16
#15339
23M
23.00 mi14:07:213:12:558:2310:41
8:32
#15208
24M
24.00 mi14:15:413:21:158:238:20
8:20
#15119
40K
24.85 mi14:22:593:28:338:237:18
8:32
#15049
25.2M
25.20 mi14:26:143:31:488:243:15
9:25
#15036
Finish
26.22 mi14:35:013:40:358:258:47
8:37
#15087
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi163675510551015430(Top 58%)4933(Top 43%)4933(Top 409%)
10K6.21 mi3.10 mi16292+755453+575453+5716316(Top 61%)5462(Top 48%)5462(Top 453%)
15K9.32 mi3.11 mi16007+2855285+1685285+16815430(Top 58%)4933(Top 43%)4933(Top 409%)
20K12.43 mi3.11 mi15790+2175175+1105175+11015247(Top 57%)4865(Top 43%)4865(Top 403%)
Half13.11 mi0.68 mi15776+145167+85167+815719(Top 59%)5125(Top 45%)5125(Top 425%)
25K15.53 mi2.42 mi15555+2215062+1055062+10514598(Top 55%)4586(Top 40%)4586(Top 380%)
30K18.64 mi3.11 mi15433+1225035+275035+2714981(Top 56%)4917(Top 43%)4917(Top 407%)
20M20.00 mi1.36 mi15406+275034+15034+115073(Top 57%)5040(Top 44%)5040(Top 418%)
21M21.00 mi1.00 mi15415-95068-345068-3416278(Top 61%)5780(Top 51%)5780(Top 479%)
35K21.75 mi0.75 mi15339+765030+385030+3813947(Top 52%)4538(Top 40%)4538(Top 376%)
23M23.00 mi1.25 mi15208+1314970+604970+6013458(Top 51%)4321(Top 38%)4321(Top 358%)
24M24.00 mi1.00 mi15119+894927+434927+4313475(Top 51%)4385(Top 38%)4385(Top 363%)
40K24.85 mi0.85 mi15049+704907+204907+2013617(Top 51%)4538(Top 40%)4538(Top 376%)
25.2M25.20 mi0.35 mi15036+134910-34910-314863(Top 56%)5221(Top 46%)5221(Top 433%)
Finish26.22 mi1.02 mi15087-514961-514961-5116096(Top 60%)5868(Top 51%)5868(Top 486%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15430

Females

4933

F50-54

4933

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

16316

Females

5462

F50-54

5462

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15430

Females

4933

F50-54

4933

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

15247

Females

4865

F50-54

4865

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

15719

Females

5125

F50-54

5125

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14598

Females

4586

F50-54

4586

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

14981

Females

4917

F50-54

4917

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

15073

Females

5040

F50-54

5040

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

16278

Females

5780

F50-54

5780

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13947

Females

4538

F50-54

4538

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

13458

Females

4321

F50-54

4321

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13475

Females

4385

F50-54

4385

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13617

Females

4538

F50-54

4538

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14863

Females

5221

F50-54

5221

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

16096

Females

5868

F50-54

5868

Passing Analysis

Category:
Athletes Passed
2232
Passed By
952
Net Change
+1280
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16367
5K → 10K321246+75#16367#16292
10K → 15K36883+285#16292#16007
15K → 20K29376+217#16007#15790
20K → Half4026+14#15790#15776
Half → 25K25332+221#15776#15555
25K → 30K243121+122#15555#15433
30K → 20M9568+27#15433#15406
20M → 21M8493-9#15406#15415
21M → 35K848+76#15415#15339
35K → 23M16635+131#15339#15208
23M → 24M10617+89#15208#15119
24M → 40K9525+70#15119#15049
40K → 25.2M4229+13#15049#15036
25.2M → Finish4293-51#15036#15087
TOTALS2232952+1280
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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