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BOSTON MARATHON 2025

Magdaléna Bartková

Bib: 21653•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 44%
Masters (Masters Women)
#0 / 6759
Top 31%
Division (F50-54)
#0 / 1303
Top 23%
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
8:12/mi
25:28
↑ 97↓ 3451.5%
10K· 6.21 mi
7:59/mi
50:17
↑ 79↓ 1380.4%
15K· 9.32 mi
8:03/mi
1:15:19
↑ 67↓ 78
20K· 12.43 mi
8:14/mi
1:40:54
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:46:23
↑ 19↓ 370.5%
25K· 15.53 mi
8:17/mi
2:06:28
↑ 66↓ 880.2%
30K· 18.64 mi
8:35/mi
2:33:07
↑ 181↓ 1480.2%
20M
8:48/mi
2:45:05
↑ 64↓ 500.2%
21M
9:35/mi
2:54:40
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
3:01:07
↑ 17↓ 861.7%
23M
8:45/mi
3:12:04
↑ 23↓ 630.6%
24M
8:35/mi
3:20:39
↓ 821.3%
40K· 24.85 mi
8:38/mi
3:28:02
↓ 200.3%
25.2M
9:34/mi
3:31:20
↑ 13↓ 160.2%
Finish· 26.22 mi
8:26/mi
3:39:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:23
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:53:33
Pace8:40 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3025:288:1225:28
8:12
-
10K
6.21 mi11:45:1950:178:0624:49
7:59
-0:13
15K
9.32 mi12:10:211:15:198:0525:02
8:03
+0:04
20K
12.43 mi12:35:561:40:548:0725:35
8:14
+0:11
Half
13.11 mi12:41:251:46:238:075:29
8:02
-0:12
25K
15.53 mi13:01:302:06:288:0820:05
8:17
+0:15
30K
18.64 mi13:28:092:33:078:1326:39
8:35
+0:18
20M
20.00 mi13:40:072:45:058:1511:58
8:48
+0:13
21M
21.00 mi13:49:422:54:408:199:35
9:35
+0:47
35K
21.75 mi13:56:093:01:078:206:27
8:37
-0:58
23M
23.00 mi14:07:063:12:048:2110:57
8:45
+0:08
24M
24.00 mi14:15:413:20:398:228:35
8:35
-0:10
40K
24.85 mi14:23:043:28:028:227:23
8:38
+0:03
25.2M
25.20 mi14:26:223:31:208:233:18
9:34
+0:56
Finish
26.22 mi14:34:583:39:568:248:36
8:26
-1:08

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

7:59 /mi

Average Pace

8:24 /mi

Slowest Pace

9:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:28

58% of race

Time at Steady Pace

1:20:35

37% of race

Time at Slower Pace

12:53

6% of race

Average Pace: 8:23 /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 mi11:20:3025:288:1225:28
8:12
#18081
10K
6.21 mi11:45:1950:178:0624:49
7:59
#17211
15K
9.32 mi12:10:211:15:198:0525:02
8:03
#16935
20K
12.43 mi12:35:561:40:548:0725:35
8:14
#16825
Half
13.11 mi12:41:251:46:238:075:29
8:02
#16770
25K
15.53 mi13:01:302:06:288:0820:05
8:17
#16582
30K
18.64 mi13:28:092:33:078:1326:39
8:35
#16309
20M
20.00 mi13:40:072:45:058:1511:58
8:48
#16220
21M
21.00 mi13:49:422:54:408:199:35
9:35
#16202
35K
21.75 mi13:56:093:01:078:206:27
8:37
#16161
23M
23.00 mi14:07:063:12:048:2110:57
8:45
#16020
24M
24.00 mi14:15:413:20:398:228:35
8:35
#15971
40K
24.85 mi14:23:043:28:028:227:23
8:38
#15878
25.2M
25.20 mi14:26:223:31:208:233:18
9:34
#15852
Finish
26.22 mi14:34:583:39:568:248:36
8:26
#15848
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi180816391639116477(Top 58%)5420(Top 44%)5420(Top 416%)
10K6.21 mi3.10 mi17211+8705854+5375854+53716394(Top 58%)5364(Top 44%)5364(Top 412%)
15K9.32 mi3.11 mi16935+2765683+1715683+17116477(Top 58%)5420(Top 44%)5420(Top 416%)
20K12.43 mi3.11 mi16825+1105635+485635+4816537(Top 58%)5511(Top 45%)5511(Top 423%)
Half13.11 mi0.68 mi16770+555598+375598+3716247(Top 57%)5334(Top 44%)5334(Top 409%)
25K15.53 mi2.42 mi16582+1885512+865512+8615821(Top 56%)5209(Top 43%)5209(Top 400%)
30K18.64 mi3.11 mi16309+2735419+935419+9315263(Top 54%)5056(Top 41%)5056(Top 388%)
20M20.00 mi1.36 mi16220+895393+265393+2615711(Top 55%)5424(Top 44%)5424(Top 416%)
21M21.00 mi1.00 mi16202+185411-185411-1816468(Top 58%)5956(Top 49%)5956(Top 457%)
35K21.75 mi0.75 mi16161+415418-75418-716209(Top 57%)5894(Top 48%)5894(Top 452%)
23M23.00 mi1.25 mi16020+1415373+455373+4514817(Top 52%)5232(Top 43%)5232(Top 402%)
24M24.00 mi1.00 mi15971+495364+95364+915080(Top 53%)5421(Top 44%)5421(Top 416%)
40K24.85 mi0.85 mi15878+935330+345330+3414305(Top 50%)5134(Top 42%)5134(Top 394%)
25.2M25.20 mi0.35 mi15852+265334-45334-414999(Top 53%)5546(Top 45%)5546(Top 426%)
Finish26.22 mi1.02 mi15848+45358-245358-2415847(Top 56%)5936(Top 49%)5936(Top 456%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

16477

Females

5420

F50-54

5420

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

16394

Females

5364

F50-54

5364

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

16477

Females

5420

F50-54

5420

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

16537

Females

5511

F50-54

5511

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

16247

Females

5334

F50-54

5334

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

15821

Females

5209

F50-54

5209

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15263

Females

5056

F50-54

5056

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15711

Females

5424

F50-54

5424

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16468

Females

5956

F50-54

5956

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16209

Females

5894

F50-54

5894

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

14817

Females

5232

F50-54

5232

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

15080

Females

5421

F50-54

5421

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14305

Females

5134

F50-54

5134

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14999

Females

5546

F50-54

5546

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15847

Females

5936

F50-54

5936

Passing Analysis

Category:
Athletes Passed
3043
Passed By
810
Net Change
+2233
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18081
5K → 10K91848+870#18081#17211
10K → 15K36589+276#17211#16935
15K → 20K242132+110#16935#16825
20K → Half7116+55#16825#16770
Half → 25K24658+188#16770#16582
25K → 30K36996+273#16582#16309
30K → 20M14051+89#16309#16220
20M → 21M11597+18#16220#16202
21M → 35K8039+41#16202#16161
35K → 23M17837+141#16161#16020
23M → 24M8940+49#16020#15971
24M → 40K11320+93#15971#15878
40K → 25.2M4721+26#15878#15852
25.2M → Finish7066+4#15852#15848
TOTALS3043810+2233
📊

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