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BOSTON MARATHON 2025

Julia Lynch

Bib: 31939•F

MA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:34/mi
32:49
↑ 97↓ 3451.5%
10K· 6.21 mi
10:30/mi
1:05:27
↑ 79↓ 1380.4%
15K· 9.32 mi
10:51/mi
1:39:11
↑ 67↓ 78
20K· 12.43 mi
10:10/mi
2:10:45
↑ 106↓ 860.1%
Half· 13.11 mi
9:59/mi
2:17:34
↑ 19↓ 370.5%
25K· 15.53 mi
10:16/mi
2:42:28
↑ 66↓ 880.2%
30K· 18.64 mi
10:26/mi
3:14:52
↑ 181↓ 1480.2%
20M
10:10/mi
3:28:41
↑ 64↓ 500.2%
21M
10:19/mi
3:39:00
↑ 106↓ 241.6%
35K· 21.75 mi
9:45/mi
3:46:18
↑ 17↓ 861.7%
23M
9:59/mi
3:58:48
↑ 23↓ 630.6%
24M
9:42/mi
4:08:30
↓ 821.3%
40K· 24.85 mi
9:41/mi
4:16:47
↓ 200.3%
25.2M
9:46/mi
4:20:09
↑ 13↓ 160.2%
Finish· 26.22 mi
8:39/mi
4:28:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:17:34
Pace10:30 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:11:24
Pace10:01 /mi
📊Negative Split: 4.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:1532:4910:3432:49
10:34
-
10K
6.21 mi12:30:531:05:2710:3232:38
10:30
-0:04
15K
9.32 mi13:04:371:39:1110:3833:44
10:51
+0:21
20K
12.43 mi13:36:112:10:4510:3131:34
10:10
-0:41
Half
13.11 mi13:43:002:17:3410:306:49
9:59
-0:11
25K
15.53 mi14:07:542:42:2810:2824:54
10:16
+0:17
30K
18.64 mi14:40:183:14:5210:2732:24
10:26
+0:10
20M
20.00 mi14:54:073:28:4110:2613:49
10:10
-0:16
21M
21.00 mi15:04:263:39:0010:2610:19
10:19
+0:09
35K
21.75 mi15:11:443:46:1810:247:18
9:45
-0:34
23M
23.00 mi15:24:143:58:4810:2312:30
9:59
+0:14
24M
24.00 mi15:33:564:08:3010:219:42
9:42
-0:17
40K
24.85 mi15:42:134:16:4710:208:17
9:41
-0:01
25.2M
25.20 mi15:45:354:20:0910:193:22
9:46
+0:05
Finish
26.22 mi15:54:244:28:5810:168:49
8:39
-1:07

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

8:39 /mi

Average Pace

10:16 /mi

Slowest Pace

10:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

37:28

14% of race

Time at Steady Pace

1:39:55

37% of race

Time at Slower Pace

2:11:35

49% of race

Average Pace: 10:15 /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 mi11:58:1532:4910:3432:49
10:34
#26897
10K
6.21 mi12:30:531:05:2710:3232:38
10:30
#26560
15K
9.32 mi13:04:371:39:1110:3833:44
10:51
#26528
20K
12.43 mi13:36:112:10:4510:3131:34
10:10
#26012
Half
13.11 mi13:43:002:17:3410:306:49
9:59
#25944
25K
15.53 mi14:07:542:42:2810:2824:54
10:16
#25635
30K
18.64 mi14:40:183:14:5210:2732:24
10:26
#25141
20M
20.00 mi14:54:073:28:4110:2613:49
10:10
#24945
21M
21.00 mi15:04:263:39:0010:2610:19
10:19
#24730
35K
21.75 mi15:11:443:46:1810:247:18
9:45
#24638
23M
23.00 mi15:24:143:58:4810:2312:30
9:59
#24448
24M
24.00 mi15:33:564:08:3010:219:42
9:42
#24293
40K
24.85 mi15:42:134:16:4710:208:17
9:41
#24163
25.2M
25.20 mi15:45:354:20:0910:193:22
9:46
#24071
Finish
26.22 mi15:54:244:28:5810:168:49
8:39
#23914
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26897112621126226496(Top 93%)11066(Top 90%)11066(Top 202%)
10K6.21 mi3.10 mi26560+33711084+17811084+17826269(Top 92%)10944(Top 89%)10944(Top 200%)
15K9.32 mi3.11 mi26528+3211071+1311071+1326496(Top 93%)11066(Top 90%)11066(Top 202%)
20K12.43 mi3.11 mi26012+51610794+27710794+27724560(Top 86%)10023(Top 82%)10023(Top 183%)
Half13.11 mi0.68 mi25944+6810760+3410760+3424828(Top 87%)10178(Top 83%)10178(Top 186%)
25K15.53 mi2.42 mi25635+30910590+17010590+17023889(Top 84%)9684(Top 79%)9684(Top 177%)
30K18.64 mi3.11 mi25141+49410358+23210358+23222778(Top 80%)9200(Top 75%)9200(Top 168%)
20M20.00 mi1.36 mi24945+19610264+9410264+9421495(Top 76%)8629(Top 71%)8629(Top 158%)
21M21.00 mi1.00 mi24730+21510156+10810156+10819462(Top 69%)7603(Top 62%)7603(Top 139%)
35K21.75 mi0.75 mi24638+9210115+4110115+4121238(Top 75%)8646(Top 71%)8646(Top 158%)
23M23.00 mi1.25 mi24448+19010032+8310032+8320462(Top 72%)8283(Top 68%)8283(Top 151%)
24M24.00 mi1.00 mi24293+1559951+819951+8120421(Top 72%)8313(Top 68%)8313(Top 152%)
40K24.85 mi0.85 mi24163+1309913+389913+3819471(Top 69%)7887(Top 64%)7887(Top 144%)
25.2M25.20 mi0.35 mi24071+929869+449869+4416024(Top 56%)6129(Top 50%)6129(Top 112%)
Finish26.22 mi1.02 mi23914+1579795+749795+7417221(Top 61%)6683(Top 55%)6683(Top 122%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21story building
+97ft-345ft

Overall

26496

Females

11066

F18-39

11066

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

26269

Females

10944

F18-39

10944

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+67ft-78ft

Overall

26496

Females

11066

F18-39

11066

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

24560

Females

10023

F18-39

10023

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

24828

Females

10178

F18-39

10178

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

23889

Females

9684

F18-39

9684

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22778

Females

9200

F18-39

9200

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

21495

Females

8629

F18-39

8629

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

19462

Females

7603

F18-39

7603

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

21238

Females

8646

F18-39

8646

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

20462

Females

8283

F18-39

8283

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

20421

Females

8313

F18-39

8313

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19471

Females

7887

F18-39

7887

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

16024

Females

6129

F18-39

6129

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17221

Females

6683

F18-39

6683

Passing Analysis

Category:
Athletes Passed
3148
Passed By
165
Net Change
+2983
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26897
5K → 10K38750+337#26897#26560
10K → 15K12896+32#26560#26528
15K → 20K5160+516#26528#26012
20K → Half702+68#26012#25944
Half → 25K3123+309#25944#25635
25K → 30K4940+494#25635#25141
30K → 20M1971+196#25141#24945
20M → 21M2172+215#24945#24730
21M → 35K953+92#24730#24638
35K → 23M1911+190#24638#24448
23M → 24M1561+155#24448#24293
24M → 40K1344+130#24293#24163
40K → 25.2M920+92#24163#24071
25.2M → Finish1592+157#24071#23914
TOTALS3148165+2983
📊

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