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BOSTON MARATHON 2025

Katharine Guaragno

NY

Bib: 14470 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 37%
Gender (Female)
#0 / 12228
Top 21%
Division (F18-39)
#0 / 5469
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:54/mi
24:34
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:47/mi
48:46
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:46/mi
1:12:54
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:43/mi
1:36:51
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:33/mi
1:42:00
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:42/mi
2:00:41
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:38/mi
2:24:25
↑ 181↓ 1480.2%
138 ft elev
20M
7:43/mi
2:34:54
↑ 64↓ 500.2%
148 ft elev
21M
7:57/mi
2:42:51
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:14/mi
2:48:16
↑ 17↓ 861.7%
156 ft elev
23M
7:33/mi
2:57:43
↑ 23↓ 630.6%
116 ft elev
24M
7:23/mi
3:05:06
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:34/mi
3:11:34
↓ 200.3%
20 ft elev
25.2M
8:04/mi
3:14:21
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:05/mi
3:21:34
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:42:00
Pace7:47 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:34
Pace7:36 /mi
📊Negative Split: 2.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:4724:347:5424:34
7:54
-
10K
6.21 mi11:19:5948:467:5124:12
7:47
-0:07
15K
9.32 mi11:44:071:12:547:4924:08
7:46
-0:01
20K
12.43 mi12:08:041:36:517:4823:57
7:43
-0:03
Half
13.11 mi12:13:131:42:007:475:09
7:33
-0:10
25K
15.53 mi12:31:542:00:417:4618:41
7:42
+0:09
30K
18.64 mi12:55:382:24:257:4523:44
7:38
-0:04
20M
20.00 mi13:06:072:34:547:4510:29
7:43
+0:05
21M
21.00 mi13:14:042:42:517:457:57
7:57
+0:14
35K
21.75 mi13:19:292:48:167:445:25
7:14
-0:43
23M
23.00 mi13:28:562:57:437:449:27
7:33
+0:19
24M
24.00 mi13:36:193:05:067:437:23
7:23
-0:10
40K
24.85 mi13:42:473:11:347:426:28
7:34
+0:11
25.2M
25.20 mi13:45:343:14:217:432:47
8:04
+0:30
Finish
26.22 mi13:52:473:21:347:427:13
7:05
-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

7:05 /mi

Average Pace

7:42 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:16

82% of race

Time at Steady Pace

35:18

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:41 /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 mi10:55:4724:347:5424:34
7:54
#15762
10K
6.21 mi11:19:5948:467:5124:12
7:47
#15226
15K
9.32 mi11:44:071:12:547:4924:08
7:46
#14817
20K
12.43 mi12:08:041:36:517:4823:57
7:43
#14192
Half
13.11 mi12:13:131:42:007:475:09
7:33
#14084
25K
15.53 mi12:31:542:00:417:4618:41
7:42
#13611
30K
18.64 mi12:55:382:24:257:4523:44
7:38
#12635
20M
20.00 mi13:06:072:34:547:4510:29
7:43
#12280
21M
21.00 mi13:14:042:42:517:457:57
7:57
#11924
35K
21.75 mi13:19:292:48:167:445:25
7:14
#11718
23M
23.00 mi13:28:562:57:437:449:27
7:33
#11358
24M
24.00 mi13:36:193:05:067:437:23
7:23
#11110
40K
24.85 mi13:42:473:11:347:426:28
7:34
#10913
25.2M
25.20 mi13:45:343:14:217:432:47
8:04
#10831
Finish
26.22 mi13:52:473:21:347:427:13
7:05
#10609
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi157624991499114095(Top 50%)4067(Top 33%)4067(Top 74%)
10K6.21 mi3.10 mi15226+5364675+3164675+31614704(Top 52%)4361(Top 36%)4361(Top 80%)
15K9.32 mi3.11 mi14817+4094443+2324443+23214095(Top 50%)4067(Top 33%)4067(Top 74%)
20K12.43 mi3.11 mi14192+6254117+3264117+32612495(Top 44%)3265(Top 27%)3265(Top 60%)
Half13.11 mi0.68 mi14084+1084051+664051+6612152(Top 43%)3013(Top 25%)3013(Top 55%)
25K15.53 mi2.42 mi13611+4733824+2273824+22711590(Top 41%)2894(Top 24%)2894(Top 53%)
30K18.64 mi3.11 mi12635+9763339+4853339+4858764(Top 31%)1734(Top 14%)1734(Top 32%)
20M20.00 mi1.36 mi12280+3553187+1523187+1528487(Top 30%)1756(Top 14%)1756(Top 32%)
21M21.00 mi1.00 mi11924+3563032+1553032+1557120(Top 25%)1364(Top 11%)1364(Top 25%)
35K21.75 mi0.75 mi11718+2062941+912941+916920(Top 24%)1271(Top 10%)1271(Top 23%)
23M23.00 mi1.25 mi11358+3602811+1302811+1306945(Top 24%)1383(Top 11%)1383(Top 25%)
24M24.00 mi1.00 mi11110+2482713+982713+986990(Top 25%)1460(Top 12%)1460(Top 27%)
40K24.85 mi0.85 mi10913+1972647+662647+667233(Top 25%)1663(Top 14%)1663(Top 30%)
25.2M25.20 mi0.35 mi10831+822617+302617+306432(Top 23%)1435(Top 12%)1435(Top 26%)
Finish26.22 mi1.02 mi10609+2222526+912526+916303(Top 22%)1369(Top 11%)1369(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

14095

Females

4067

F18-39

4067

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

14704

Females

4361

F18-39

4361

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

14095

Females

4067

F18-39

4067

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

12495

Females

3265

F18-39

3265

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12152

Females

3013

F18-39

3013

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11590

Females

2894

F18-39

2894

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8764

Females

1734

F18-39

1734

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8487

Females

1756

F18-39

1756

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

7120

Females

1364

F18-39

1364

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6920

Females

1271

F18-39

1271

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6945

Females

1383

F18-39

1383

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6990

Females

1460

F18-39

1460

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7233

Females

1663

F18-39

1663

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6432

Females

1435

F18-39

1435

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

6303

Females

1369

F18-39

1369

Passing Analysis

Category:
Athletes Passed
5371
Passed By
218
Net Change
+5153
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15762
5K → 10K657121+536#15762#15226
10K → 15K45344+409#15226#14817
15K → 20K6349+625#14817#14192
20K → Half1113+108#14192#14084
Half → 25K4785+473#14084#13611
25K → 30K9760+976#13611#12635
30K → 20M3561+355#12635#12280
20M → 21M3593+356#12280#11924
21M → 35K2093+206#11924#11718
35K → 23M3622+360#11718#11358
23M → 24M2535+248#11358#11110
24M → 40K2036+197#11110#10913
40K → 25.2M875+82#10913#10831
25.2M → Finish23311+222#10831#10609
TOTALS5371218+5153
📊

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