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BOSTON MARATHON 2025

Katerina Zanozina

Bib: 13339•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 19%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 9%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:28
Rank: #7161
Start → 5K
21:28 | 6:55/mi
10K· 6.21 mi
43:11
Rank: #7520 (-359)
5K → 10K
21:43 | 6:59/mi
15K· 9.32 mi
1:04:49
Rank: #7465 (+55)
10K → 15K
21:38 | 6:58/mi
20K· 12.43 mi
1:26:42
Rank: #7340 (+125)
15K → 20K
21:53 | 7:03/mi
Half· 13.11 mi
1:31:23
Rank: #7297 (+43)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:48:20
Rank: #7092 (+205)
Half → 25K
16:57 | 6:59/mi
30K· 18.64 mi
2:10:29
Rank: #6665 (+427)
25K → 30K
22:09 | 7:08/mi
20M
2:20:03
Rank: #6406 (+259)
30K → 20M
9:34 | 7:02/mi
21M
2:27:32
Rank: #6236 (+170)
20M → 21M
7:29 | 7:29/mi
35K· 21.75 mi
2:32:44
Rank: #6164 (+72)
21M → 35K
5:12 | 6:57/mi
23M
2:41:31
Rank: #5942 (+222)
35K → 23M
8:47 | 7:01/mi
24M
2:48:22
Rank: #5787 (+155)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:54:21
Rank: #5659 (+128)
24M → 40K
5:59 | 7:00/mi
25.2M
2:56:58
Rank: #5590 (+69)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:04:00
Rank: #5525 (+65)
25.2M → Finish
7:02 | 6:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:23
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:32:37
Pace7:04 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2821:286:5521:28
6:55
-
10K
6.21 mi11:12:1143:116:5721:43
6:59
+0:04
15K
9.32 mi11:33:491:04:496:5721:38
6:58
-0:01
20K
12.43 mi11:55:421:26:426:5921:53
7:03
+0:05
Half
13.11 mi12:00:231:31:236:584:41
6:52
-0:11
25K
15.53 mi12:17:201:48:206:5816:57
6:59
+0:07
30K
18.64 mi12:39:292:10:297:0022:09
7:08
+0:09
20M
20.00 mi12:49:032:20:037:009:34
7:02
-0:06
21M
21.00 mi12:56:322:27:327:027:29
7:29
+0:27
35K
21.75 mi13:01:442:32:447:015:12
6:57
-0:32
23M
23.00 mi13:10:312:41:317:018:47
7:01
+0:04
24M
24.00 mi13:17:222:48:227:016:51
6:51
-0:10
40K
24.85 mi13:23:212:54:217:015:59
7:00
+0:09
25.2M
25.20 mi13:25:582:56:587:012:37
7:35
+0:35
Finish
26.22 mi13:33:003:04:007:017:02
6:54
-0:41

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

6:51 /mi

Average Pace

7:01 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:23

99% of race

Time at Steady Pace

2:37

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:01 /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 mi10:50:2821:286:5521:28
6:55
#7161
10K
6.21 mi11:12:1143:116:5721:43
6:59
#7520
15K
9.32 mi11:33:491:04:496:5721:38
6:58
#7465
20K
12.43 mi11:55:421:26:426:5921:53
7:03
#7340
Half
13.11 mi12:00:231:31:236:584:41
6:52
#7297
25K
15.53 mi12:17:201:48:206:5816:57
6:59
#7092
30K
18.64 mi12:39:292:10:297:0022:09
7:08
#6665
20M
20.00 mi12:49:032:20:037:009:34
7:02
#6406
21M
21.00 mi12:56:322:27:327:027:29
7:29
#6236
35K
21.75 mi13:01:442:32:447:015:12
6:57
#6164
23M
23.00 mi13:10:312:41:317:018:47
7:01
#5942
24M
24.00 mi13:17:222:48:227:016:51
6:51
#5787
40K
24.85 mi13:23:212:54:217:015:59
7:00
#5659
25.2M
25.20 mi13:25:582:56:587:012:37
7:35
#5590
Finish
26.22 mi13:33:003:04:007:017:02
6:54
#5525
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi71617237237397(Top 26%)834(Top 7%)834(Top 15%)
10K6.21 mi3.10 mi7520-359833-110833-1107867(Top 28%)959(Top 8%)959(Top 18%)
15K9.32 mi3.11 mi7465+55826+7826+77397(Top 26%)834(Top 7%)834(Top 15%)
20K12.43 mi3.11 mi7340+125804+22804+227159(Top 25%)822(Top 7%)822(Top 15%)
Half13.11 mi0.68 mi7297+43793+11793+116714(Top 24%)692(Top 6%)692(Top 13%)
25K15.53 mi2.42 mi7092+205749+44749+446287(Top 22%)663(Top 5%)663(Top 12%)
30K18.64 mi3.11 mi6665+427694+55694+555502(Top 19%)550(Top 4%)550(Top 10%)
20M20.00 mi1.36 mi6406+259647+47647+474371(Top 15%)379(Top 3%)379(Top 7%)
21M21.00 mi1.00 mi6236+170630+17630+174569(Top 16%)505(Top 4%)505(Top 9%)
35K21.75 mi0.75 mi6164+72622+8622+85091(Top 18%)623(Top 5%)623(Top 11%)
23M23.00 mi1.25 mi5942+222593+29593+293886(Top 14%)391(Top 3%)391(Top 7%)
24M24.00 mi1.00 mi5787+155573+20573+203846(Top 14%)429(Top 4%)429(Top 8%)
40K24.85 mi0.85 mi5659+128559+14559+143938(Top 14%)488(Top 4%)488(Top 9%)
25.2M25.20 mi0.35 mi5590+69552+7552+73892(Top 14%)526(Top 4%)526(Top 10%)
Finish26.22 mi1.02 mi5525+65548+4548+45127(Top 18%)900(Top 7%)900(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7397

Females

834

F18-39

834

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7867

Females

959

F18-39

959

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7397

Females

834

F18-39

834

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7159

Females

822

F18-39

822

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6714

Females

692

F18-39

692

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6287

Females

663

F18-39

663

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5502

Females

550

F18-39

550

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4371

Females

379

F18-39

379

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4569

Females

505

F18-39

505

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5091

Females

623

F18-39

623

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3886

Females

391

F18-39

391

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3846

Females

429

F18-39

429

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3938

Females

488

F18-39

488

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3892

Females

526

F18-39

526

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

5127

Females

900

F18-39

900

Passing Analysis

Category:
Athletes Passed
2346
Passed By
710
Net Change
+1636
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7161
5K → 10K90449-359#7161#7520
10K → 15K169114+55#7520#7465
15K → 20K17853+125#7465#7340
20K → Half518+43#7340#7297
Half → 25K22823+205#7297#7092
25K → 30K44215+427#7092#6665
30K → 20M2623+259#6665#6406
20M → 21M1744+170#6406#6236
21M → 35K786+72#6236#6164
35K → 23M2231+222#6164#5942
23M → 24M1583+155#5942#5787
24M → 40K1357+128#5787#5659
40K → 25.2M712+69#5659#5590
25.2M → Finish8722+65#5590#5525
TOTALS2346710+1636
📊

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