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BOSTON MARATHON 2025

Katherine Golding

Bib: 4674•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 28%
Gender (Female)
#0 / 12228
Top 11%
Division (F18-39)
#0 / 5469
Top 20%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:51
Rank: #5561
Start → 5K
20:51 | 6:43/mi
10K· 6.21 mi
41:49
Rank: #5674 (-113)
5K → 10K
20:58 | 6:45/mi
15K· 9.32 mi
1:02:41
Rank: #5509 (+165)
10K → 15K
20:52 | 6:43/mi
20K· 12.43 mi
1:23:56
Rank: #5519 (-10)
15K → 20K
21:15 | 6:50/mi
Half· 13.11 mi
1:28:31
Rank: #5508 (+11)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:45:08
Rank: #5446 (+62)
Half → 25K
16:37 | 6:51/mi
30K· 18.64 mi
2:06:53
Rank: #5223 (+223)
25K → 30K
21:45 | 7:00/mi
20M
2:17:54
Rank: #5709 (-486)
30K → 20M
11:01 | 8:06/mi
21M
2:25:35
Rank: #5660 (+49)
20M → 21M
7:41 | 7:41/mi
35K· 21.75 mi
2:31:21
Rank: #5767 (-107)
21M → 35K
5:46 | 7:42/mi
23M
2:43:42
Rank: #6516 (-749)
35K → 23M
12:21 | 9:52/mi
24M
2:51:41
Rank: #6649 (-133)
23M → 24M
7:59 | 7:59/mi
40K· 24.85 mi
3:02:21
Rank: #7867 (-1218)
24M → 40K
10:40 | 12:29/mi
25.2M
3:05:14
Rank: #7843 (+24)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:12:44
Rank: #7816 (+27)
25.2M → Finish
7:30 | 7:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:31
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:44:13
Pace7:57 /mi
📊Positive Split: 17.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2120:516:4320:51
6:43
-
10K
6.21 mi10:45:1941:496:4420:58
6:45
+0:02
15K
9.32 mi11:06:111:02:416:4420:52
6:43
-0:02
20K
12.43 mi11:27:261:23:566:4521:15
6:50
+0:07
Half
13.11 mi11:32:011:28:316:454:35
6:43
-0:07
25K
15.53 mi11:48:381:45:086:4616:37
6:51
+0:08
30K
18.64 mi12:10:232:06:536:4821:45
7:00
+0:09
20M
20.00 mi12:21:242:17:546:5411:01
8:06
+1:06
21M
21.00 mi12:29:052:25:356:567:41
7:41
-0:25
35K
21.75 mi12:34:512:31:216:585:46
7:42
+0:01
23M
23.00 mi12:47:122:43:427:0712:21
9:52
+2:10
24M
24.00 mi12:55:112:51:417:097:59
7:59
-1:53
40K
24.85 mi13:05:513:02:217:2010:40
12:29
+4:30
25.2M
25.20 mi13:08:443:05:147:212:53
8:22
-4:07
Finish
26.22 mi13:16:143:12:447:217:30
7:22
-1:00

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

6:43 /mi

Average Pace

7:21 /mi

Slowest Pace

12:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:46:50

87% of race

Time at Slower Pace

25:54

13% of race

Average Pace: 7:21 /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 mi10:24:2120:516:4320:51
6:43
#5561
10K
6.21 mi10:45:1941:496:4420:58
6:45
#5674
15K
9.32 mi11:06:111:02:416:4420:52
6:43
#5509
20K
12.43 mi11:27:261:23:566:4521:15
6:50
#5519
Half
13.11 mi11:32:011:28:316:454:35
6:43
#5508
25K
15.53 mi11:48:381:45:086:4616:37
6:51
#5446
30K
18.64 mi12:10:232:06:536:4821:45
7:00
#5223
20M
20.00 mi12:21:242:17:546:5411:01
8:06
#5709
21M
21.00 mi12:29:052:25:356:567:41
7:41
#5660
35K
21.75 mi12:34:512:31:216:585:46
7:42
#5767
23M
23.00 mi12:47:122:43:427:0712:21
9:52
#6516
24M
24.00 mi12:55:112:51:417:097:59
7:59
#6649
40K
24.85 mi13:05:513:02:217:2010:40
12:29
#7867
25.2M
25.20 mi13:08:443:05:147:212:53
8:22
#7843
Finish
26.22 mi13:16:143:12:447:217:30
7:22
#7816
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi55614034035259(Top 19%)389(Top 3%)389(Top 7%)
10K6.21 mi3.10 mi5674-113422-19422-195853(Top 21%)486(Top 4%)486(Top 9%)
15K9.32 mi3.11 mi5509+165408+14408+145259(Top 19%)389(Top 3%)389(Top 7%)
20K12.43 mi3.11 mi5519-10422-14422-145715(Top 20%)495(Top 4%)495(Top 9%)
Half13.11 mi0.68 mi5508+11426-4426-45537(Top 19%)462(Top 4%)462(Top 8%)
25K15.53 mi2.42 mi5446+62425+1425+15338(Top 19%)457(Top 4%)457(Top 8%)
30K18.64 mi3.11 mi5223+223408+17408+174700(Top 17%)405(Top 3%)405(Top 7%)
20M20.00 mi1.36 mi5709-486498-90498-9011163(Top 39%)3011(Top 25%)3011(Top 55%)
21M21.00 mi1.00 mi5660+49499-1499-15584(Top 20%)790(Top 6%)790(Top 14%)
35K21.75 mi0.75 mi5767-107535-36535-3610146(Top 36%)2664(Top 22%)2664(Top 49%)
23M23.00 mi1.25 mi6516-749746-211746-21120016(Top 70%)8057(Top 66%)8057(Top 147%)
24M24.00 mi1.00 mi6649-133813-67813-6711121(Top 39%)3353(Top 27%)3353(Top 61%)
40K24.85 mi0.85 mi7867-12181257-4441257-44425637(Top 90%)10961(Top 90%)10961(Top 200%)
25.2M25.20 mi0.35 mi7843+241264-71264-77997(Top 28%)2055(Top 17%)2055(Top 38%)
Finish26.22 mi1.02 mi7816+271286-221286-228208(Top 29%)2144(Top 18%)2144(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5259

Females

389

F18-39

389

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5853

Females

486

F18-39

486

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5259

Females

389

F18-39

389

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5715

Females

495

F18-39

495

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5537

Females

462

F18-39

462

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5338

Females

457

F18-39

457

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4700

Females

405

F18-39

405

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

11163

Females

3011

F18-39

3011

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5584

Females

790

F18-39

790

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

10146

Females

2664

F18-39

2664

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

20016

Females

8057

F18-39

8057

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

11121

Females

3353

F18-39

3353

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25637

Females

10961

F18-39

10961

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7997

Females

2055

F18-39

2055

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8208

Females

2144

F18-39

2144

Passing Analysis

Category:
Athletes Passed
1211
Passed By
3466
Net Change
-2255
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5561
5K → 10K132245-113#5561#5674
10K → 15K21146+165#5674#5509
15K → 20K125135-10#5509#5519
20K → Half3019+11#5519#5508
Half → 25K14179+62#5508#5446
25K → 30K27451+223#5446#5223
30K → 20M11497-486#5223#5709
20M → 21M8940+49#5709#5660
21M → 35K21128-107#5660#5767
35K → 23M13762-749#5767#6516
23M → 24M32165-133#6516#6649
24M → 40K11219-1218#6649#7867
40K → 25.2M4925+24#7867#7843
25.2M → Finish8255+27#7843#7816
TOTALS12113466-2255
📊

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