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BOSTON MARATHON 2025

Kristine Delong

Bib: 12965•F

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 30%
Gender (Female)
#0 / 12228
Top 13%
Masters (Masters Women)
#0 / 6759
Top 4%
Division (F45-49)
#0 / 1813
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:45
Rank: #10589
Start → 5K
22:45 | 7:19/mi
10K· 6.21 mi
44:28
Rank: #9093 (+1496)
5K → 10K
21:43 | 6:59/mi
15K· 9.32 mi
1:06:49
Rank: #9056 (+37)
10K → 15K
22:21 | 7:12/mi
20K· 12.43 mi
1:29:33
Rank: #9044 (+12)
15K → 20K
22:44 | 7:19/mi
Half· 13.11 mi
1:34:33
Rank: #9107 (-63)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:52:37
Rank: #9126 (-19)
Half → 25K
18:04 | 7:27/mi
30K· 18.64 mi
2:16:31
Rank: #9047 (+79)
25K → 30K
23:54 | 7:42/mi
20M
2:26:58
Rank: #8944 (+103)
30K → 20M
10:27 | 7:41/mi
21M
2:35:13
Rank: #8913 (+31)
20M → 21M
8:15 | 8:15/mi
35K· 21.75 mi
2:40:54
Rank: #8893 (+20)
21M → 35K
5:41 | 7:36/mi
23M
2:50:43
Rank: #8837 (+56)
35K → 23M
9:49 | 7:50/mi
24M
2:58:29
Rank: #8849 (-12)
23M → 24M
7:46 | 7:46/mi
40K· 24.85 mi
3:05:08
Rank: #8797 (+52)
24M → 40K
6:39 | 7:47/mi
25.2M
3:08:03
Rank: #8772 (+25)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:14:59
Rank: #8548 (+224)
25.2M → Finish
6:56 | 6:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:33
Pace7:13 /mi
2nd Half
Distance13.11 mi
Time1:40:26
Pace7:40 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5222:457:1922:45
7:19
-
10K
6.21 mi11:13:3544:287:0921:43
6:59
-0:20
15K
9.32 mi11:35:561:06:497:1022:21
7:12
+0:13
20K
12.43 mi11:58:401:29:337:1222:44
7:19
+0:07
Half
13.11 mi12:03:401:34:337:135:00
7:20
+0:01
25K
15.53 mi12:21:441:52:377:1518:04
7:27
+0:07
30K
18.64 mi12:45:382:16:317:1923:54
7:42
+0:15
20M
20.00 mi12:56:052:26:587:2110:27
7:41
-0:01
21M
21.00 mi13:04:202:35:137:238:15
8:15
+0:34
35K
21.75 mi13:10:012:40:547:245:41
7:36
-0:39
23M
23.00 mi13:19:502:50:437:259:49
7:50
+0:14
24M
24.00 mi13:27:362:58:297:267:46
7:46
-0:04
40K
24.85 mi13:34:153:05:087:276:39
7:47
+0:01
25.2M
25.20 mi13:37:103:08:037:282:55
8:27
+0:40
Finish
26.22 mi13:44:063:14:597:276:56
6:48
-1:39

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

6:48 /mi

Average Pace

7:27 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:29

52% of race

Time at Steady Pace

1:12:31

37% of race

Time at Slower Pace

20:59

11% of race

Average Pace: 7:26 /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 mi10:51:5222:457:1922:45
7:19
#10589
10K
6.21 mi11:13:3544:287:0921:43
6:59
#9093
15K
9.32 mi11:35:561:06:497:1022:21
7:12
#9056
20K
12.43 mi11:58:401:29:337:1222:44
7:19
#9044
Half
13.11 mi12:03:401:34:337:135:00
7:20
#9107
25K
15.53 mi12:21:441:52:377:1518:04
7:27
#9126
30K
18.64 mi12:45:382:16:317:1923:54
7:42
#9047
20M
20.00 mi12:56:052:26:587:2110:27
7:41
#8944
21M
21.00 mi13:04:202:35:137:238:15
8:15
#8913
35K
21.75 mi13:10:012:40:547:245:41
7:36
#8893
23M
23.00 mi13:19:502:50:437:259:49
7:50
#8837
24M
24.00 mi13:27:362:58:297:267:46
7:46
#8849
40K
24.85 mi13:34:153:05:087:276:39
7:47
#8797
25.2M
25.20 mi13:37:103:08:037:282:55
8:27
#8772
Finish
26.22 mi13:44:063:14:597:276:56
6:48
#8548
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi10589207920799083(Top 32%)1464(Top 12%)1464(Top 81%)
10K6.21 mi3.10 mi9093+14961416+6631416+6637874(Top 28%)966(Top 8%)966(Top 53%)
15K9.32 mi3.11 mi9056+371419-31419-39083(Top 32%)1464(Top 12%)1464(Top 81%)
20K12.43 mi3.11 mi9044+121436-171436-179202(Top 32%)1611(Top 13%)1611(Top 89%)
Half13.11 mi0.68 mi9107-631462-261462-2610289(Top 36%)2069(Top 17%)2069(Top 114%)
25K15.53 mi2.42 mi9126-191505-431505-439559(Top 34%)1901(Top 16%)1901(Top 105%)
30K18.64 mi3.11 mi9047+791531-261531-269153(Top 32%)1903(Top 16%)1903(Top 105%)
20M20.00 mi1.36 mi8944+1031514+171514+178291(Top 29%)1655(Top 14%)1655(Top 91%)
21M21.00 mi1.00 mi8913+311539-251539-258910(Top 31%)2115(Top 17%)2115(Top 117%)
35K21.75 mi0.75 mi8893+201549-101549-109337(Top 33%)2278(Top 19%)2278(Top 126%)
23M23.00 mi1.25 mi8837+561567-181567-188884(Top 31%)2194(Top 18%)2194(Top 121%)
24M24.00 mi1.00 mi8849-121612-451612-459581(Top 34%)2587(Top 21%)2587(Top 143%)
40K24.85 mi0.85 mi8797+521632-201632-208626(Top 30%)2278(Top 19%)2278(Top 126%)
25.2M25.20 mi0.35 mi8772+251637-51637-58598(Top 30%)2311(Top 19%)2311(Top 127%)
Finish26.22 mi1.02 mi8548+2241564+731564+734568(Top 16%)723(Top 6%)723(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

9083

Females

1464

F45-49

1464

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7874

Females

966

F45-49

966

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

9083

Females

1464

F45-49

1464

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9202

Females

1611

F45-49

1611

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

10289

Females

2069

F45-49

2069

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9559

Females

1901

F45-49

1901

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

9153

Females

1903

F45-49

1903

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8291

Females

1655

F45-49

1655

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8910

Females

2115

F45-49

2115

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

9337

Females

2278

F45-49

2278

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8884

Females

2194

F45-49

2194

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9581

Females

2587

F45-49

2587

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8626

Females

2278

F45-49

2278

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8598

Females

2311

F45-49

2311

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4568

Females

723

F45-49

723

Passing Analysis

Category:
Athletes Passed
3204*
Passed By
1163
Net Change
+2041
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10589
5K → 10K1507*11+1496#10589#9093
10K → 15K177140+37#9093#9056
15K → 20K167155+12#9056#9044
20K → Half1578-63#9044#9107
Half → 25K150169-19#9107#9126
25K → 30K260181+79#9126#9047
30K → 20M15148+103#9047#8944
20M → 21M11079+31#8944#8913
21M → 35K7555+20#8913#8893
35K → 23M13882+56#8893#8837
23M → 24M7587-12#8837#8849
24M → 40K9745+52#8849#8797
40K → 25.2M5328+25#8797#8772
25.2M → Finish2295+224#8772#8548
TOTALS3204*1163+2041

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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