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BOSTON MARATHON 2023

Tiffany Katsefaras

Bib: 9528•F

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 14%
Division (F18-39)
#0 / 4884
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:44
Rank: #6236
Start → 5K
21:44 | 7:00/mi
10K· 6.21 mi
43:14
Rank: #6268 (-32)
5K → 10K
21:30 | 6:55/mi
15K· 9.32 mi
1:05:13
Rank: #6504 (-236)
10K → 15K
21:59 | 7:05/mi
20K· 12.43 mi
1:28:23
Rank: #7010 (-506)
15K → 20K
23:10 | 7:27/mi
Half· 13.11 mi
1:33:21
Rank: #7064 (-54)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:51:37
Rank: #7281 (-217)
Half → 25K
18:16 | 7:32/mi
30K· 18.64 mi
2:16:27
Rank: #7782 (-501)
25K → 30K
24:50 | 8:00/mi
20M
2:27:31
Rank: #7988 (-206)
30K → 20M
11:04 | 8:09/mi
21M
2:36:12
Rank: #8179 (-191)
20M → 21M
8:41 | 8:41/mi
35K· 21.75 mi
2:42:19
Rank: #8365 (-186)
21M → 35K
6:07 | 8:11/mi
23M
2:52:42
Rank: #8538 (-173)
35K → 23M
10:23 | 8:18/mi
24M
3:00:50
Rank: #8678 (-140)
23M → 24M
8:08 | 8:08/mi
40K· 24.85 mi
3:07:46
Rank: #8730 (-52)
24M → 40K
6:56 | 8:07/mi
25.2M
3:10:43
Rank: #8738 (-8)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:18:26
Rank: #8728 (+10)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:21
Pace7:07 /mi
2nd Half
Distance13.11 mi
Time1:45:05
Pace8:01 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:1621:447:0021:44
7:00
-
10K
6.21 mi11:08:4643:146:5721:30
6:55
-0:05
15K
9.32 mi11:30:451:05:137:0021:59
7:05
+0:10
20K
12.43 mi11:53:551:28:237:0723:10
7:27
+0:22
Half
13.11 mi11:58:531:33:217:074:58
7:17
-0:10
25K
15.53 mi12:17:091:51:377:1118:16
7:32
+0:15
30K
18.64 mi12:41:592:16:277:1924:50
8:00
+0:28
20M
20.00 mi12:53:032:27:317:2311:04
8:09
+0:09
21M
21.00 mi13:01:442:36:127:268:41
8:41
+0:32
35K
21.75 mi13:07:512:42:197:286:07
8:11
-0:30
23M
23.00 mi13:18:142:52:427:3110:23
8:18
+0:07
24M
24.00 mi13:26:223:00:507:328:08
8:08
-0:10
40K
24.85 mi13:33:183:07:467:336:56
8:07
-0:01
25.2M
25.20 mi13:36:153:10:437:342:57
8:33
+0:26
Finish
26.22 mi13:43:583:18:267:347:43
7:34
-0:59

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

6:55 /mi

Average Pace

7:34 /mi

Slowest Pace

8:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:20

60% of race

Time at Steady Pace

57:05

29% of race

Time at Slower Pace

22:01

11% of race

Average Pace: 7:34 /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 mi10:47:1621:447:0021:44
7:00
#6236
10K
6.21 mi11:08:4643:146:5721:30
6:55
#6268
15K
9.32 mi11:30:451:05:137:0021:59
7:05
#6504
20K
12.43 mi11:53:551:28:237:0723:10
7:27
#7010
Half
13.11 mi11:58:531:33:217:074:58
7:17
#7064
25K
15.53 mi12:17:091:51:377:1118:16
7:32
#7281
30K
18.64 mi12:41:592:16:277:1924:50
8:00
#7782
20M
20.00 mi12:53:032:27:317:2311:04
8:09
#7988
21M
21.00 mi13:01:442:36:127:268:41
8:41
#8179
35K
21.75 mi13:07:512:42:197:286:07
8:11
#8365
23M
23.00 mi13:18:142:52:427:3110:23
8:18
#8538
24M
24.00 mi13:26:223:00:507:328:08
8:08
#8678
40K
24.85 mi13:33:183:07:467:336:56
8:07
#8730
25.2M
25.20 mi13:36:153:10:437:342:57
8:33
#8738
Finish
26.22 mi13:43:583:18:267:347:43
7:34
#8728
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi62365415417019(Top 26%)757(Top 7%)757(Top 15%)
10K6.21 mi3.10 mi6268-32573-32573-326292(Top 24%)594(Top 5%)594(Top 12%)
15K9.32 mi3.11 mi6504-236624-51624-517019(Top 26%)757(Top 7%)757(Top 15%)
20K12.43 mi3.11 mi7010-506741-117741-1178986(Top 34%)1479(Top 13%)1479(Top 30%)
Half13.11 mi0.68 mi7064-54762-21762-218516(Top 32%)1295(Top 11%)1295(Top 27%)
25K15.53 mi2.42 mi7281-217833-71833-719039(Top 34%)1567(Top 14%)1567(Top 32%)
30K18.64 mi3.11 mi7782-5011036-2031036-20310849(Top 41%)2560(Top 22%)2560(Top 52%)
20M20.00 mi1.36 mi7988-2061131-951131-9511305(Top 42%)2879(Top 25%)2879(Top 59%)
21M21.00 mi1.00 mi8179-1911223-921223-9211563(Top 43%)3168(Top 28%)3168(Top 65%)
35K21.75 mi0.75 mi8365-1861298-751298-7513279(Top 50%)4141(Top 36%)4141(Top 85%)
23M23.00 mi1.25 mi8538-1731389-911389-9111842(Top 44%)3420(Top 30%)3420(Top 70%)
24M24.00 mi1.00 mi8678-1401463-741463-7412152(Top 46%)3663(Top 32%)3663(Top 75%)
40K24.85 mi0.85 mi8730-521509-461509-4610769(Top 40%)3017(Top 26%)3017(Top 62%)
25.2M25.20 mi0.35 mi8738-81525-161525-169901(Top 37%)2617(Top 23%)2617(Top 54%)
Finish26.22 mi1.02 mi8728+101543-181543-189114(Top 34%)2284(Top 20%)2284(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7019

Females

757

F18-39

757

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6292

Females

594

F18-39

594

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7019

Females

757

F18-39

757

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

8986

Females

1479

F18-39

1479

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

8516

Females

1295

F18-39

1295

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9039

Females

1567

F18-39

1567

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

10849

Females

2560

F18-39

2560

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

11305

Females

2879

F18-39

2879

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11563

Females

3168

F18-39

3168

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13279

Females

4141

F18-39

4141

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11842

Females

3420

F18-39

3420

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12152

Females

3663

F18-39

3663

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10769

Females

3017

F18-39

3017

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9901

Females

2617

F18-39

2617

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9114

Females

2284

F18-39

2284

Passing Analysis

Category:
Athletes Passed
593
Passed By
3085
Net Change
-2492
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6236
5K → 10K172204-32#6236#6268
10K → 15K47283-236#6268#6504
15K → 20K20526-506#6504#7010
20K → Half660-54#7010#7064
Half → 25K32249-217#7064#7281
25K → 30K41542-501#7281#7782
30K → 20M24230-206#7782#7988
20M → 21M27218-191#7988#8179
21M → 35K14200-186#8179#8365
35K → 23M43216-173#8365#8538
23M → 24M31171-140#8538#8678
24M → 40K4799-52#8678#8730
40K → 25.2M2735-8#8730#8738
25.2M → Finish6252+10#8738#8728
TOTALS5933085-2492
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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