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BOSTON MARATHON 2025

Melanie Barzik

Bib: 23502•F

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 47%
Masters (Masters Women)
#0 / 6759
Top 35%
Division (F50-54)
#0 / 1303
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
8:24/mi
26:05
↑ 97↓ 3451.5%
10K· 6.21 mi
8:17/mi
51:48
↑ 79↓ 1380.4%
15K· 9.32 mi
8:15/mi
1:17:26
↑ 67↓ 78
20K· 12.43 mi
8:20/mi
1:43:18
↑ 106↓ 860.1%
Half· 13.11 mi
8:08/mi
1:48:51
↑ 19↓ 370.5%
25K· 15.53 mi
8:26/mi
2:09:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:36:11
↑ 181↓ 1480.2%
20M
8:54/mi
2:48:16
↑ 64↓ 500.2%
21M
9:20/mi
2:57:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:21/mi
3:03:51
↑ 17↓ 861.7%
23M
8:46/mi
3:14:50
↑ 23↓ 630.6%
24M
8:40/mi
3:23:30
↓ 821.3%
40K· 24.85 mi
8:50/mi
3:31:03
↓ 200.3%
25.2M
9:43/mi
3:34:24
↑ 13↓ 160.2%
Finish· 26.22 mi
8:17/mi
3:42:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:51
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:53:59
Pace8:42 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:5426:058:2426:05
8:24
-
10K
6.21 mi11:50:3751:488:2025:43
8:17
-0:07
15K
9.32 mi12:16:151:17:268:1825:38
8:15
-0:02
20K
12.43 mi12:42:071:43:188:1925:52
8:20
+0:05
Half
13.11 mi12:47:401:48:518:185:33
8:08
-0:12
25K
15.53 mi13:08:062:09:178:1920:26
8:26
+0:18
30K
18.64 mi13:35:002:36:118:2326:54
8:39
+0:13
20M
20.00 mi13:47:052:48:168:2512:05
8:54
+0:15
21M
21.00 mi13:56:252:57:368:279:20
9:20
+0:26
35K
21.75 mi14:02:403:03:518:276:15
8:21
-0:59
23M
23.00 mi14:13:393:14:508:2810:59
8:46
+0:25
24M
24.00 mi14:22:193:23:308:298:40
8:40
-0:06
40K
24.85 mi14:29:523:31:038:297:33
8:50
+0:10
25.2M
25.20 mi14:33:133:34:248:303:21
9:43
+0:53
Finish
26.22 mi14:41:393:42:508:308:26
8:17
-1:26

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

8:30 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:30:09

94% of race

Time at Steady Pace

9:20

4% of race

Time at Slower Pace

3:21

2% of race

Average Pace: 8:30 /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 mi11:24:5426:058:2426:05
8:24
#19287
10K
6.21 mi11:50:3751:488:2025:43
8:17
#18841
15K
9.32 mi12:16:151:17:268:1825:38
8:15
#18452
20K
12.43 mi12:42:071:43:188:1925:52
8:20
#18072
Half
13.11 mi12:47:401:48:518:185:33
8:08
#18002
25K
15.53 mi13:08:062:09:178:1920:26
8:26
#17732
30K
18.64 mi13:35:002:36:118:2326:54
8:39
#17321
20M
20.00 mi13:47:052:48:168:2512:05
8:54
#17217
21M
21.00 mi13:56:252:57:368:279:20
9:20
#17074
35K
21.75 mi14:02:403:03:518:276:15
8:21
#16971
23M
23.00 mi14:13:393:14:508:2810:59
8:46
#16822
24M
24.00 mi14:22:193:23:308:298:40
8:40
#16747
40K
24.85 mi14:29:523:31:038:297:33
8:50
#16681
25.2M
25.20 mi14:33:133:34:248:303:21
9:43
#16671
Finish
26.22 mi14:41:393:42:508:308:26
8:17
#16581
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi192877071707117747(Top 62%)6165(Top 50%)6165(Top 473%)
10K6.21 mi3.10 mi18841+4466812+2596812+25918412(Top 65%)6547(Top 54%)6547(Top 502%)
15K9.32 mi3.11 mi18452+3896596+2166596+21617747(Top 62%)6165(Top 50%)6165(Top 473%)
20K12.43 mi3.11 mi18072+3806376+2206376+22017090(Top 60%)5822(Top 48%)5822(Top 447%)
Half13.11 mi0.68 mi18002+706339+376339+3716913(Top 60%)5716(Top 47%)5716(Top 439%)
25K15.53 mi2.42 mi17732+2706197+1426197+14216744(Top 59%)5718(Top 47%)5718(Top 439%)
30K18.64 mi3.11 mi17321+4116011+1866011+18615773(Top 56%)5329(Top 44%)5329(Top 409%)
20M20.00 mi1.36 mi17217+1045979+325979+3216207(Top 57%)5726(Top 47%)5726(Top 439%)
21M21.00 mi1.00 mi17074+1435923+565923+5615336(Top 54%)5366(Top 44%)5366(Top 412%)
35K21.75 mi0.75 mi16971+1035880+435880+4314658(Top 52%)5061(Top 41%)5061(Top 388%)
23M23.00 mi1.25 mi16822+1495824+565824+5614987(Top 53%)5333(Top 44%)5333(Top 409%)
24M24.00 mi1.00 mi16747+755810+145810+1415560(Top 55%)5673(Top 46%)5673(Top 435%)
40K24.85 mi0.85 mi16681+665802+85802+815378(Top 54%)5735(Top 47%)5735(Top 440%)
25.2M25.20 mi0.35 mi16671+105806-45806-415740(Top 55%)5951(Top 49%)5951(Top 457%)
Finish26.22 mi1.02 mi16581+905774+325774+3214800(Top 52%)5373(Top 44%)5373(Top 412%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17747

Females

6165

F50-54

6165

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

18412

Females

6547

F50-54

6547

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17747

Females

6165

F50-54

6165

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

17090

Females

5822

F50-54

5822

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16913

Females

5716

F50-54

5716

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

16744

Females

5718

F50-54

5718

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

15773

Females

5329

F50-54

5329

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

16207

Females

5726

F50-54

5726

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

15336

Females

5366

F50-54

5366

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

14658

Females

5061

F50-54

5061

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

14987

Females

5333

F50-54

5333

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

15560

Females

5673

F50-54

5673

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15378

Females

5735

F50-54

5735

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15740

Females

5951

F50-54

5951

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

14800

Females

5373

F50-54

5373

Passing Analysis

Category:
Athletes Passed
3291
Passed By
585
Net Change
+2706
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19287
5K → 10K549103+446#19287#18841
10K → 15K44253+389#18841#18452
15K → 20K41737+380#18452#18072
20K → Half766+70#18072#18002
Half → 25K31040+270#18002#17732
25K → 30K45645+411#17732#17321
30K → 20M15854+104#17321#17217
20M → 21M18138+143#17217#17074
21M → 35K12623+103#17074#16971
35K → 23M18637+149#16971#16822
23M → 24M11540+75#16822#16747
24M → 40K11246+66#16747#16681
40K → 25.2M3121+10#16681#16671
25.2M → Finish13242+90#16671#16581
TOTALS3291585+2706
📊

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