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BOSTON MARATHON 2025

Zita Merz

Bib: 21835•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 43%
Division (F50-54)
#0 / 1303
Top 39%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:46
Rank: #18683
Start → 5K
25:46 | 8:18/mi
10K· 6.21 mi
51:41
Rank: #18735 (-52)
5K → 10K
25:55 | 8:21/mi
15K· 9.32 mi
1:17:47
Rank: #18692 (+43)
10K → 15K
26:06 | 8:24/mi
20K· 12.43 mi
1:44:56
Rank: #18925 (-233)
15K → 20K
27:09 | 8:44/mi
Half· 13.11 mi
1:50:25
Rank: #18792 (+133)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:11:07
Rank: #18536 (+256)
Half → 25K
20:42 | 8:32/mi
30K· 18.64 mi
2:39:51
Rank: #18611 (-75)
25K → 30K
28:44 | 9:15/mi
20M
2:52:19
Rank: #18528 (+83)
30K → 20M
12:28 | 9:10/mi
21M
3:02:55
Rank: #18676 (-148)
20M → 21M
10:36 | 10:36/mi
35K· 21.75 mi
3:09:10
Rank: #18536 (+140)
21M → 35K
6:15 | 8:21/mi
23M
3:19:52
Rank: #18222 (+314)
35K → 23M
10:42 | 8:33/mi
24M
3:28:55
Rank: #18186 (+36)
23M → 24M
9:03 | 9:03/mi
40K· 24.85 mi
3:36:18
Rank: #18030 (+156)
24M → 40K
7:23 | 8:38/mi
25.2M
3:39:47
Rank: #18029 (+1)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:48:19
Rank: #17915 (+114)
25.2M → Finish
8:32 | 8:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:25
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time1:57:54
Pace9:00 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1125:468:1825:46
8:18
-
10K
6.21 mi11:46:0651:418:1925:55
8:21
+0:03
15K
9.32 mi12:12:121:17:478:2126:06
8:24
+0:03
20K
12.43 mi12:39:211:44:568:2727:09
8:44
+0:20
Half
13.11 mi12:44:501:50:258:255:29
8:02
-0:42
25K
15.53 mi13:05:322:11:078:2620:42
8:32
+0:30
30K
18.64 mi13:34:162:39:518:3528:44
9:15
+0:43
20M
20.00 mi13:46:442:52:198:3712:28
9:10
-0:05
21M
21.00 mi13:57:203:02:558:4310:36
10:36
+1:26
35K
21.75 mi14:03:353:09:108:426:15
8:21
-2:15
23M
23.00 mi14:14:173:19:528:4110:42
8:33
+0:12
24M
24.00 mi14:23:203:28:558:429:03
9:03
+0:30
40K
24.85 mi14:30:433:36:188:427:23
8:38
-0:25
25.2M
25.20 mi14:34:123:39:478:433:29
10:06
+1:28
Finish
26.22 mi14:42:443:48:198:438:32
8:22
-1:44

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

8:02 /mi

Average Pace

8:43 /mi

Slowest Pace

10:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:29

2% of race

Time at Steady Pace

2:38:30

69% of race

Time at Slower Pace

1:04:20

28% of race

Average Pace: 8:42 /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 mi11:20:1125:468:1825:46
8:18
#18683
10K
6.21 mi11:46:0651:418:1925:55
8:21
#18735
15K
9.32 mi12:12:121:17:478:2126:06
8:24
#18692
20K
12.43 mi12:39:211:44:568:2727:09
8:44
#18925
Half
13.11 mi12:44:501:50:258:255:29
8:02
#18792
25K
15.53 mi13:05:322:11:078:2620:42
8:32
#18536
30K
18.64 mi13:34:162:39:518:3528:44
9:15
#18611
20M
20.00 mi13:46:442:52:198:3712:28
9:10
#18528
21M
21.00 mi13:57:203:02:558:4310:36
10:36
#18676
35K
21.75 mi14:03:353:09:108:426:15
8:21
#18536
23M
23.00 mi14:14:173:19:528:4110:42
8:33
#18222
24M
24.00 mi14:23:203:28:558:429:03
9:03
#18186
40K
24.85 mi14:30:433:36:188:427:23
8:38
#18030
25.2M
25.20 mi14:34:123:39:478:433:29
10:06
#18029
Finish
26.22 mi14:42:443:48:198:438:32
8:22
#17915
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi186836729672918724(Top 66%)6737(Top 55%)6737(Top 517%)
10K6.21 mi3.10 mi18735-526757-286757-2818831(Top 66%)6781(Top 55%)6781(Top 520%)
15K9.32 mi3.11 mi18692+436726+316726+3118724(Top 66%)6737(Top 55%)6737(Top 517%)
20K12.43 mi3.11 mi18925-2336858-1326858-13219623(Top 69%)7276(Top 60%)7276(Top 558%)
Half13.11 mi0.68 mi18792+1336788+706788+7016276(Top 57%)5363(Top 44%)5363(Top 412%)
25K15.53 mi2.42 mi18536+2566660+1286660+12817427(Top 61%)6102(Top 50%)6102(Top 468%)
30K18.64 mi3.11 mi18611-756723-636723-6318893(Top 67%)7059(Top 58%)7059(Top 542%)
20M20.00 mi1.36 mi18528+836704+196704+1917667(Top 62%)6511(Top 53%)6511(Top 500%)
21M21.00 mi1.00 mi18676-1486820-1166820-11620318(Top 72%)8080(Top 66%)8080(Top 620%)
35K21.75 mi0.75 mi18536+1406756+646756+6414668(Top 52%)5071(Top 41%)5071(Top 389%)
23M23.00 mi1.25 mi18222+3146614+1426614+14213632(Top 48%)4616(Top 38%)4616(Top 354%)
24M24.00 mi1.00 mi18186+366619-56619-517627(Top 62%)6832(Top 56%)6832(Top 524%)
40K24.85 mi0.85 mi18030+1566560+596560+5914324(Top 50%)5153(Top 42%)5153(Top 395%)
25.2M25.20 mi0.35 mi18029+16571-116571-1117513(Top 62%)6867(Top 56%)6867(Top 527%)
Finish26.22 mi1.02 mi17915+1146520+516520+5115435(Top 54%)5724(Top 47%)5724(Top 439%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

18724

Females

6737

F50-54

6737

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18831

Females

6781

F50-54

6781

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

18724

Females

6737

F50-54

6737

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19623

Females

7276

F50-54

7276

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

16276

Females

5363

F50-54

5363

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

17427

Females

6102

F50-54

6102

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

18893

Females

7059

F50-54

7059

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

17667

Females

6511

F50-54

6511

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

20318

Females

8080

F50-54

8080

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14668

Females

5071

F50-54

5071

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

13632

Females

4616

F50-54

4616

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

17627

Females

6832

F50-54

6832

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14324

Females

5153

F50-54

5153

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17513

Females

6867

F50-54

6867

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15435

Females

5724

F50-54

5724

Passing Analysis

Category:
Athletes Passed
2322
Passed By
1554
Net Change
+768
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18683
5K → 10K236288-52#18683#18735
10K → 15K212169+43#18735#18692
15K → 20K133366-233#18692#18925
20K → Half1363+133#18925#18792
Half → 25K29337+256#18792#18536
25K → 30K220295-75#18536#18611
30K → 20M14764+83#18611#18528
20M → 21M59207-148#18528#18676
21M → 35K1455+140#18676#18536
35K → 23M3173+314#18536#18222
23M → 24M9357+36#18222#18186
24M → 40K1648+156#18186#18030
40K → 25.2M2827+1#18030#18029
25.2M → Finish13925+114#18029#17915
TOTALS23221554+768
📊

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