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BOSTON MARATHON 2025

Kaitlyn Gundlach

Bib: 18650•F

UT

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 38%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:00
Rank: #16971
Start → 5K
25:00 | 8:03/mi
10K· 6.21 mi
49:54
Rank: #16766 (+205)
5K → 10K
24:54 | 8:01/mi
15K· 9.32 mi
1:14:37
Rank: #16378 (+388)
10K → 15K
24:43 | 7:57/mi
20K· 12.43 mi
1:39:19
Rank: #15859 (+519)
15K → 20K
24:42 | 7:57/mi
Half· 13.11 mi
1:44:43
Rank: #15838 (+21)
20K → Half
5:24 | 7:55/mi
25K· 15.53 mi
2:04:05
Rank: #15450 (+388)
Half → 25K
19:22 | 7:59/mi
30K· 18.64 mi
2:29:19
Rank: #14825 (+625)
25K → 30K
25:14 | 8:07/mi
20M
2:40:34
Rank: #14570 (+255)
30K → 20M
11:15 | 8:17/mi
21M
2:49:23
Rank: #14390 (+180)
20M → 21M
8:49 | 8:49/mi
35K· 21.75 mi
2:55:28
Rank: #14350 (+40)
21M → 35K
6:05 | 8:08/mi
23M
3:06:19
Rank: #14348 (+2)
35K → 23M
10:51 | 8:40/mi
24M
3:15:02
Rank: #14386 (-38)
23M → 24M
8:43 | 8:43/mi
40K· 24.85 mi
3:22:45
Rank: #14442 (-56)
24M → 40K
7:43 | 9:02/mi
25.2M
3:26:11
Rank: #14476 (-34)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
3:34:54
Rank: #14546 (-70)
25.2M → Finish
8:43 | 8:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:43
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:50:11
Pace8:24 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0525:008:0325:00
8:03
-
10K
6.21 mi11:40:5949:548:0224:54
8:01
-0:02
15K
9.32 mi12:05:421:14:378:0024:43
7:57
-0:04
20K
12.43 mi12:30:241:39:198:0024:42
7:57
0:00
Half
13.11 mi12:35:481:44:437:595:24
7:55
-0:02
25K
15.53 mi12:55:102:04:057:5919:22
7:59
+0:04
30K
18.64 mi13:20:242:29:198:0125:14
8:07
+0:08
20M
20.00 mi13:31:392:40:348:0211:15
8:17
+0:10
21M
21.00 mi13:40:282:49:238:048:49
8:49
+0:32
35K
21.75 mi13:46:332:55:288:046:05
8:08
-0:41
23M
23.00 mi13:57:243:06:198:0610:51
8:40
+0:32
24M
24.00 mi14:06:073:15:028:088:43
8:43
+0:03
40K
24.85 mi14:13:503:22:458:097:43
9:02
+0:19
25.2M
25.20 mi14:17:163:26:118:113:26
9:57
+0:55
Finish
26.22 mi14:25:593:34:548:128:43
8:33
-1:24

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

7:55 /mi

Average Pace

8:12 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:46:39

78% of race

Time at Slower Pace

48:15

22% of race

Average Pace: 8:12 /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 mi11:16:0525:008:0325:00
8:03
#16971
10K
6.21 mi11:40:5949:548:0224:54
8:01
#16766
15K
9.32 mi12:05:421:14:378:0024:43
7:57
#16378
20K
12.43 mi12:30:241:39:198:0024:42
7:57
#15859
Half
13.11 mi12:35:481:44:437:595:24
7:55
#15838
25K
15.53 mi12:55:102:04:057:5919:22
7:59
#15450
30K
18.64 mi13:20:242:29:198:0125:14
8:07
#14825
20M
20.00 mi13:31:392:40:348:0211:15
8:17
#14570
21M
21.00 mi13:40:282:49:238:048:49
8:49
#14390
35K
21.75 mi13:46:332:55:288:046:05
8:08
#14350
23M
23.00 mi13:57:243:06:198:0610:51
8:40
#14348
24M
24.00 mi14:06:073:15:028:088:43
8:43
#14386
40K
24.85 mi14:13:503:22:458:097:43
9:02
#14442
25.2M
25.20 mi14:17:163:26:118:113:26
9:57
#14476
Finish
26.22 mi14:25:593:34:548:128:43
8:33
#14546
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi169715720572015709(Top 55%)4973(Top 41%)4973(Top 91%)
10K6.21 mi3.10 mi16766+2055594+1265594+12616597(Top 58%)5477(Top 45%)5477(Top 100%)
15K9.32 mi3.11 mi16378+3885361+2335361+23315709(Top 55%)4973(Top 41%)4973(Top 91%)
20K12.43 mi3.11 mi15859+5195069+2925069+29214556(Top 51%)4399(Top 36%)4399(Top 80%)
Half13.11 mi0.68 mi15838+215053+165053+1615276(Top 54%)4773(Top 39%)4773(Top 87%)
25K15.53 mi2.42 mi15450+3884859+1944859+19413819(Top 49%)4119(Top 34%)4119(Top 75%)
30K18.64 mi3.11 mi14825+6254577+2824577+28212273(Top 43%)3435(Top 28%)3435(Top 63%)
20M20.00 mi1.36 mi14570+2554454+1234454+12312376(Top 44%)3640(Top 30%)3640(Top 67%)
21M21.00 mi1.00 mi14390+1804378+764378+7612443(Top 44%)3836(Top 31%)3836(Top 70%)
35K21.75 mi0.75 mi14350+404365+134365+1313189(Top 46%)4273(Top 35%)4273(Top 78%)
23M23.00 mi1.25 mi14348+24404-394404-3914350(Top 51%)4987(Top 41%)4987(Top 91%)
24M24.00 mi1.00 mi14386-384446-424446-4215843(Top 56%)5833(Top 48%)5833(Top 107%)
40K24.85 mi0.85 mi14442-564517-714517-7116460(Top 58%)6283(Top 51%)6283(Top 115%)
25.2M25.20 mi0.35 mi14476-344548-314548-3116838(Top 59%)6492(Top 53%)6492(Top 119%)
Finish26.22 mi1.02 mi14546-704621-734621-7316583(Top 58%)6341(Top 52%)6341(Top 116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15709

Females

4973

F18-39

4973

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

16597

Females

5477

F18-39

5477

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15709

Females

4973

F18-39

4973

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

14556

Females

4399

F18-39

4399

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

15276

Females

4773

F18-39

4773

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13819

Females

4119

F18-39

4119

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

12273

Females

3435

F18-39

3435

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

12376

Females

3640

F18-39

3640

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

12443

Females

3836

F18-39

3836

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

13189

Females

4273

F18-39

4273

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

14350

Females

4987

F18-39

4987

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

15843

Females

5833

F18-39

5833

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16460

Females

6283

F18-39

6283

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16838

Females

6492

F18-39

6492

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16583

Females

6341

F18-39

6341

Passing Analysis

Category:
Athletes Passed
3358
Passed By
933
Net Change
+2425
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16971
5K → 10K407202+205#16971#16766
10K → 15K43951+388#16766#16378
15K → 20K54021+519#16378#15859
20K → Half4726+21#15859#15838
Half → 25K40517+388#15838#15450
25K → 30K64621+625#15450#14825
30K → 20M27722+255#14825#14570
20M → 21M21333+180#14570#14390
21M → 35K7535+40#14390#14350
35K → 23M115113+2#14350#14348
23M → 24M5795-38#14348#14386
24M → 40K59115-56#14386#14442
40K → 25.2M2155-34#14442#14476
25.2M → Finish57127-70#14476#14546
TOTALS3358933+2425
📊

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