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BOSTON MARATHON 2025

Kristina Hacker

Bib: 9753•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 20%
Gender (Female)
#0 / 12228
Top 5%
Division (F18-39)
#0 / 5469
Top 10%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:39
Rank: #7583
Start → 5K
21:39 | 6:58/mi
10K· 6.21 mi
43:07
Rank: #7433 (+150)
5K → 10K
21:28 | 6:55/mi
15K· 9.32 mi
1:04:47
Rank: #7441 (-8)
10K → 15K
21:40 | 6:58/mi
20K· 12.43 mi
1:26:33
Rank: #7263 (+178)
15K → 20K
21:46 | 7:00/mi
Half· 13.11 mi
1:31:16
Rank: #7244 (+19)
20K → Half
4:43 | 6:55/mi
25K· 15.53 mi
1:48:20
Rank: #7094 (+150)
Half → 25K
17:04 | 7:02/mi
30K· 18.64 mi
2:10:38
Rank: #6727 (+367)
25K → 30K
22:18 | 7:11/mi
20M
2:20:32
Rank: #6553 (+174)
30K → 20M
9:54 | 7:17/mi
21M
2:28:04
Rank: #6388 (+165)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:33:22
Rank: #6328 (+60)
21M → 35K
5:18 | 7:05/mi
23M
2:42:21
Rank: #6171 (+157)
35K → 23M
8:59 | 7:10/mi
24M
2:49:18
Rank: #6034 (+137)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
2:55:17
Rank: #5899 (+135)
24M → 40K
5:59 | 7:00/mi
25.2M
2:57:52
Rank: #5835 (+64)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
3:04:52
Rank: #5724 (+111)
25.2M → Finish
7:00 | 6:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:16
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:33:36
Pace7:08 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2221:396:5821:39
6:58
-
10K
6.21 mi11:09:5043:076:5621:28
6:55
-0:03
15K
9.32 mi11:31:301:04:476:5721:40
6:58
+0:03
20K
12.43 mi11:53:161:26:336:5821:46
7:00
+0:02
Half
13.11 mi11:57:591:31:166:584:43
6:55
-0:05
25K
15.53 mi12:15:031:48:206:5817:04
7:02
+0:07
30K
18.64 mi12:37:212:10:387:0022:18
7:11
+0:09
20M
20.00 mi12:47:152:20:327:029:54
7:17
+0:06
21M
21.00 mi12:54:472:28:047:037:32
7:32
+0:15
35K
21.75 mi13:00:052:33:227:035:18
7:05
-0:27
23M
23.00 mi13:09:042:42:217:048:59
7:10
+0:05
24M
24.00 mi13:16:012:49:187:036:57
6:57
-0:13
40K
24.85 mi13:22:002:55:177:035:59
7:00
+0:03
25.2M
25.20 mi13:24:352:57:527:032:35
7:29
+0:29
Finish
26.22 mi13:31:353:04:527:037:00
6:52
-0:37

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

6:52 /mi

Average Pace

7:03 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:51

89% of race

Time at Steady Pace

20:01

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:03 /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 mi10:48:2221:396:5821:39
6:58
#7583
10K
6.21 mi11:09:5043:076:5621:28
6:55
#7433
15K
9.32 mi11:31:301:04:476:5721:40
6:58
#7441
20K
12.43 mi11:53:161:26:336:5821:46
7:00
#7263
Half
13.11 mi11:57:591:31:166:584:43
6:55
#7244
25K
15.53 mi12:15:031:48:206:5817:04
7:02
#7094
30K
18.64 mi12:37:212:10:387:0022:18
7:11
#6727
20M
20.00 mi12:47:152:20:327:029:54
7:17
#6553
21M
21.00 mi12:54:472:28:047:037:32
7:32
#6388
35K
21.75 mi13:00:052:33:227:035:18
7:05
#6328
23M
23.00 mi13:09:042:42:217:048:59
7:10
#6171
24M
24.00 mi13:16:012:49:187:036:57
6:57
#6034
40K
24.85 mi13:22:002:55:177:035:59
7:00
#5899
25.2M
25.20 mi13:24:352:57:527:032:35
7:29
#5835
Finish
26.22 mi13:31:353:04:527:037:00
6:52
#5724
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi75838328327464(Top 26%)857(Top 7%)857(Top 16%)
10K6.21 mi3.10 mi7433+150808+24808+247312(Top 26%)777(Top 6%)777(Top 14%)
15K9.32 mi3.11 mi7441-8816-8816-87464(Top 26%)857(Top 7%)857(Top 16%)
20K12.43 mi3.11 mi7263+178785+31785+316909(Top 24%)753(Top 6%)753(Top 14%)
Half13.11 mi0.68 mi7244+19781+4781+47048(Top 25%)773(Top 6%)773(Top 14%)
25K15.53 mi2.42 mi7094+150751+30751+306583(Top 23%)739(Top 6%)739(Top 14%)
30K18.64 mi3.11 mi6727+367709+42709+425788(Top 20%)619(Top 5%)619(Top 11%)
20M20.00 mi1.36 mi6553+174690+19690+195719(Top 20%)712(Top 6%)712(Top 13%)
21M21.00 mi1.00 mi6388+165666+24666+244807(Top 17%)561(Top 5%)561(Top 10%)
35K21.75 mi0.75 mi6328+60663+3663+35923(Top 21%)891(Top 7%)891(Top 16%)
23M23.00 mi1.25 mi6171+157648+15648+154754(Top 17%)603(Top 5%)603(Top 11%)
24M24.00 mi1.00 mi6034+137628+20628+204390(Top 15%)549(Top 4%)549(Top 10%)
40K24.85 mi0.85 mi5899+135617+11617+113939(Top 14%)489(Top 4%)489(Top 9%)
25.2M25.20 mi0.35 mi5835+64607+10607+103459(Top 12%)426(Top 3%)426(Top 8%)
Finish26.22 mi1.02 mi5724+111600+7600+74923(Top 17%)843(Top 7%)843(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7464

Females

857

F18-39

857

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7312

Females

777

F18-39

777

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7464

Females

857

F18-39

857

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6909

Females

753

F18-39

753

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

7048

Females

773

F18-39

773

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6583

Females

739

F18-39

739

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5788

Females

619

F18-39

619

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5719

Females

712

F18-39

712

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4807

Females

561

F18-39

561

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5923

Females

891

F18-39

891

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4754

Females

603

F18-39

603

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4390

Females

549

F18-39

549

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3939

Females

489

F18-39

489

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3459

Females

426

F18-39

426

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4923

Females

843

F18-39

843

Passing Analysis

Category:
Athletes Passed
2316
Passed By
457
Net Change
+1859
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7583
5K → 10K279129+150#7583#7433
10K → 15K144152-8#7433#7441
15K → 20K21739+178#7441#7263
20K → Half289+19#7263#7244
Half → 25K18939+150#7244#7094
25K → 30K38922+367#7094#6727
30K → 20M19218+174#6727#6553
20M → 21M1694+165#6553#6388
21M → 35K7010+60#6388#6328
35K → 23M17114+157#6328#6171
23M → 24M1436+137#6171#6034
24M → 40K1372+135#6034#5899
40K → 25.2M640+64#5899#5835
25.2M → Finish12413+111#5835#5724
TOTALS2316457+1859
📊

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