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BOSTON MARATHON 2025

Krista Ann Starzomski

Bib: 19718•F

NS

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 39%
Gender (Female)
#0 / 12228
Top 23%
Masters (Masters Women)
#0 / 6759
Top 10%
Division (F50-54)
#0 / 1303
Top 5%
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
7:42/mi
23:55
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
47:55
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:11:55
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:35:53
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:41:08
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
1:59:59
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:24:49
↑ 181↓ 1480.2%
20M
7:58/mi
2:35:38
↑ 64↓ 500.2%
21M
8:22/mi
2:44:00
↑ 106↓ 241.6%
35K· 21.75 mi
7:33/mi
2:49:39
↑ 17↓ 861.7%
23M
7:47/mi
2:59:24
↑ 23↓ 630.6%
24M
7:26/mi
3:06:50
↓ 821.3%
40K· 24.85 mi
7:34/mi
3:13:18
↓ 200.3%
25.2M
8:13/mi
3:16:08
↑ 13↓ 160.2%
Finish· 26.22 mi
7:14/mi
3:23:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:08
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:42:22
Pace7:49 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1223:557:4223:55
7:42
-
10K
6.21 mi11:39:1247:557:4324:00
7:43
+0:01
15K
9.32 mi12:03:121:11:557:4324:00
7:43
0:00
20K
12.43 mi12:27:101:35:537:4323:58
7:43
0:00
Half
13.11 mi12:32:251:41:087:435:15
7:42
-0:01
25K
15.53 mi12:51:161:59:597:4318:51
7:46
+0:04
30K
18.64 mi13:16:062:24:497:4624:50
8:00
+0:14
20M
20.00 mi13:26:552:35:387:4710:49
7:58
-0:02
21M
21.00 mi13:35:172:44:007:498:22
8:22
+0:24
35K
21.75 mi13:40:562:49:397:485:39
7:33
-0:49
23M
23.00 mi13:50:412:59:247:489:45
7:47
+0:14
24M
24.00 mi13:58:073:06:507:477:26
7:26
-0:21
40K
24.85 mi14:04:353:13:187:476:28
7:34
+0:08
25.2M
25.20 mi14:07:253:16:087:472:50
8:13
+0:39
Finish
26.22 mi14:14:473:23:307:467:22
7:14
-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

7:14 /mi

Average Pace

7:46 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:39

77% of race

Time at Steady Pace

46:51

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /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 mi11:15:1223:557:4223:55
7:42
#13959
10K
6.21 mi11:39:1247:557:4324:00
7:43
#14001
15K
9.32 mi12:03:121:11:557:4324:00
7:43
#13888
20K
12.43 mi12:27:101:35:537:4323:58
7:43
#13506
Half
13.11 mi12:32:251:41:087:435:15
7:42
#13496
25K
15.53 mi12:51:161:59:597:4318:51
7:46
#13227
30K
18.64 mi13:16:062:24:497:4624:50
8:00
#12811
20M
20.00 mi13:26:552:35:387:4710:49
7:58
#12577
21M
21.00 mi13:35:172:44:007:498:22
8:22
#12376
35K
21.75 mi13:40:562:49:397:485:39
7:33
#12232
23M
23.00 mi13:50:412:59:247:489:45
7:47
#11959
24M
24.00 mi13:58:073:06:507:477:26
7:26
#11724
40K
24.85 mi14:04:353:13:187:476:28
7:34
#11498
25.2M
25.20 mi14:07:253:16:087:472:50
8:13
#11383
Finish
26.22 mi14:14:473:23:307:467:22
7:14
#11177
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi139593880388013740(Top 48%)3858(Top 32%)3858(Top 296%)
10K6.21 mi3.10 mi14001-423940-603940-6014118(Top 50%)4022(Top 33%)4022(Top 309%)
15K9.32 mi3.11 mi13888+1133901+393901+3913740(Top 48%)3858(Top 32%)3858(Top 296%)
20K12.43 mi3.11 mi13506+3823733+1683733+16812547(Top 44%)3293(Top 27%)3293(Top 253%)
Half13.11 mi0.68 mi13496+103728+53728+513364(Top 47%)3675(Top 30%)3675(Top 282%)
25K15.53 mi2.42 mi13227+2693612+1163612+11612136(Top 43%)3178(Top 26%)3178(Top 244%)
30K18.64 mi3.11 mi12811+4163428+1843428+18411332(Top 40%)2943(Top 24%)2943(Top 226%)
20M20.00 mi1.36 mi12577+2343350+783350+7810200(Top 36%)2537(Top 21%)2537(Top 195%)
21M21.00 mi1.00 mi12376+2013275+753275+759678(Top 34%)2465(Top 20%)2465(Top 189%)
35K21.75 mi0.75 mi12232+1443222+533222+539073(Top 32%)2167(Top 18%)2167(Top 166%)
23M23.00 mi1.25 mi11959+2733118+1043118+1048531(Top 30%)2062(Top 17%)2062(Top 158%)
24M24.00 mi1.00 mi11724+2353036+823036+827302(Top 26%)1591(Top 13%)1591(Top 122%)
40K24.85 mi0.85 mi11498+2262950+862950+867236(Top 25%)1666(Top 14%)1666(Top 128%)
25.2M25.20 mi0.35 mi11383+1152915+352915+357265(Top 26%)1781(Top 15%)1781(Top 137%)
Finish26.22 mi1.02 mi11177+2062844+712844+717270(Top 26%)1769(Top 14%)1769(Top 136%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13740

Females

3858

F50-54

3858

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14118

Females

4022

F50-54

4022

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13740

Females

3858

F50-54

3858

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

12547

Females

3293

F50-54

3293

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13364

Females

3675

F50-54

3675

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

12136

Females

3178

F50-54

3178

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11332

Females

2943

F50-54

2943

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

10200

Females

2537

F50-54

2537

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9678

Females

2465

F50-54

2465

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9073

Females

2167

F50-54

2167

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8531

Females

2062

F50-54

2062

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

7302

Females

1591

F50-54

1591

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7236

Females

1666

F50-54

1666

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7265

Females

1781

F50-54

1781

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

7270

Females

1769

F50-54

1769

Passing Analysis

Category:
Athletes Passed
3421
Passed By
639
Net Change
+2782
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13959
5K → 10K245287-42#13959#14001
10K → 15K236123+113#14001#13888
15K → 20K42745+382#13888#13506
20K → Half3828+10#13506#13496
Half → 25K31142+269#13496#13227
25K → 30K45842+416#13227#12811
30K → 20M25824+234#12811#12577
20M → 21M22120+201#12577#12376
21M → 35K1473+144#12376#12232
35K → 23M2785+273#12232#11959
23M → 24M2383+235#11959#11724
24M → 40K2304+226#11724#11498
40K → 25.2M1183+115#11498#11383
25.2M → Finish21610+206#11383#11177
TOTALS3421639+2782
📊

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